Category: The two knives

Tuesday, May 25, 2010

The Chilling Killing Propensities Of Sollecito’s Various Knives

Posted by SomeAlibi

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The few rather puerile websites trying to make the case that Knox and Sollecito were framed all have this one thing in common.

They are all of them a mile or more wide on the facts of the evidence - but only a millimeter or so deep.

Time and again on some point of evidence TJMK and PMF have gone far, far deeper than they have - and from then on, on that particular point, deafening silence is quite usual. Here is one very good example, on TJMK, highly incriminating in itself, and highly suggestive of when and how Edda Mellas first realised her daughter was guilty.

On that point of hard evidence, almost enough to incriminate Amanda all by itself, there has never been any real comeback. The PR campaign’s Wizard of Oz moves on. 

Now we advance another in-depth analysis. This time it focuses on the really deadly nature of Sollecito’s various knives, and we’ll await the comeback if any with interest.

In effect, the deniers’ argument made is that Sollecito is not a collector or an aficionado, just a young man who might need to cut an apple with a pocket-knife. And he’s certainly not a hardcore knife collector, collecting fantasy-wish-list knives.

Carrying a pocket-knife above a certain size in public is illegal in Italy. But ignoring that technicality for a minute, let’s examine the knives of Raffaele Sollecito which were impounded during his arrest. Three knives, moving up in degrees of interest, not counting the very large knife prosecution witnesses identified as the murder weapon.

Knife Three

Take a look at the image up the top here. This knife actually hung above Sollecito’s bed.

It is a replica combat knife. The heavy t-bar protection is designed to protect the hand of the knife-user from slipping onto the blade when being used to stab another person, as well as to protect the user against another blade.

Blood grooves exist for only one purpose - as they imply, they are there for when one stabs someone deeply with the knife: they allow the blood to run out down the grooves. This breaks the seal and suction of the enclosing wound around the blade which makes the knife far easier to withdraw

That knife is specifically designed for stabbing people as well as cutting sentries’ throats etc. The female arm in the picture is Amanda’s by the way (you can find the zoomed-out version showing all of Amanda in the PMF gallery), as it was taken when she was being shown the knife in court.

She must have recognized it, of course, since it was from Raffaele’s bedroom, and would have been a rather noticeable discussion piece within view whenever Knox was in the room or laying on the bed.

Many teenagers and young adults put the objects of their highest interest and infatuation, from bands to film-stars, on their walls. Raffaele chose to put a knife designed for killing people on his wall.

It would be a lurking and incongruous presence on a small student-sized bedroom wall in the minds of the vast majority of people. The question of Raffaele’s degree of attraction to knives such that he actively chose to mount a replica combat knife on his bedroom wall doesn’t appear to need much further discussion.

And yet, it’s actually only less than a third of the equation as it was only a replica. Now let’s turn to two real knives - his so-proclaimed pocket knives - which Raffaele confirmed in his own words that he carried on him every day for years, and which tell a more subtle and deeper story.

First, consider what is the meaning of a pocket knife to you.

The phrase “˜pocket knife’ has been translated from the Italian from the transcripts / press coverage. For many, including myself, this will have conjured a mental image of a Swiss Army type knife or a simple blade and indeed this is the prevalent definition of a conventional pocket knife.

Let’s actually have a look at Raffaele’s “pocket knives” courtesy of pictures posted by poster Jools on PMF. These knives were impounded, one from the apartment and one, unbelievably, from Raffaele’s person at the Questura.

In the case of the latter, even Raffaele saw this as a devastating “own-goal” as we can read from his diary entry of 7 November 2007; “I’m not even able to offer guilt, given my deep fu**ing stupidity for the fact that I smoke cannabis I even forget what I have eaten and also for that I carry behind a knife to nock the tables and the trees and I carry it so often that I brought it also to the police headquarters.”

Knife Two

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This is a 2.9 inch blade drop point, near spear point knife. At first glance (apart from the mark on the clip which should be ignored and was benign), the deniers camp might say “Well, look at it - it’s just a pocket knife even if it looks a bit sharp and so on ““ look, it’s even got a cute clip for the pocket, like on a pen.”

Let’s start there. The clip is actually a reversible one ““ it can be taken off and re-screwed to the knife to the user’s side / orientation of preference. This is already a proper knife rather than a cheap shop pick-up.

More obviously, the half-serrated edge to the blade for cutting is an active design (and purchase) feature.

Third, the “˜grind’ on the top the blade shows an aesthetic sensibility to the design but also serves a functional purpose for a cutting or stabbing use in terms of reducing friction.

Fourth, the serrations or (quite aggressive) “˜jimping’ on the top of the handle, just behind the blade are there to provide thumb grip.

Quite a lot of design features on this knife for a casual “pocket knife” one might think.

Which leaves us with the odd bar code thing at the top edge of the blade and the indistinct logo on the blade. Let’s see what that logo is with a little enhancing;

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“˜Brian Tighe Design’. Brian Tighe?? Google sets us straight on who he is.

“You’d need a calculator to count the number of custom knife-makers who have jumped into the tactical fray over the past five years. You can tally the cream of the crop on two hands, being sure to earmark one of those digits for knifemaker Brian Tighe. In a matter of just a couple of years Tighe (pronounced “Tie”) has risen from the rank and file of edged weapons artisans to the rarefied air of the top 10 elite.”

A look at Tighe’s site shows that his own company’s knives sell for 500 dollars and up. He is a globally feted knife designer whose wait list for his knives was as high as seven years at one point.

So the design of the knife here is actually that of a noted master knife maker. Almost something one might collect, one might say. As loaded as Papa Doc Sollecito is, did Raffaele really spend over 500 dollars on such a knife?

Well no, actually, he didnt need to. This is a Columbia River Knife & Tool produced 811x series knife bearing Brian Tighe’s name. CRKT are a dedicated knife company who specialise in working with the world’s leading knife designers and producing the knives for a bigger market but still as proper aficionado pieces.

At this level of knife, there are extensive magazine, web and “˜user’ reviews. Knives like this are tested for resilience and sharpness including things like edge-on paper-cut tests where paper is cut through just like a razor from the side of a piece of paper held by one hand.

Such a knife is able to catch the edge of the paper and then slice straight through the width of the paper side-on without any tension in the paper. That’s what a knife like this is capable of. A “pocket knife” to me sounds like something picked up for 10 or 20 euro. The current model that replaced Raffaele’s now out-of-series model sells for about $80 at retail. Here’s the actual 2004 model that Raffaele had i.e. the same as the one above;

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Worth looking at that for a second or two… Oh the bar code? It’s not a bar code, it a rectangular thumb stud you flick the knife open with. When you do, the knife goes to a locked position unlike many “pocket-knives”. In English speaking knife circles, these knives are not generally referred to as pocket-knives but are called “Tactical Knives” which are a cross-over of usage knives for outdoors / cutting etc but also for personal “protection”.

So, in addition to the wall-mounted replica combat knife, one of Raffaele’s daily carries (see diary / testimony) was a designer thumb-flicked locking tactical knife with jimping, top blade grind, switchable clip and a razor sharp edge costing about 80 bucks. That you can only carry in your pocket. Illegally. Some apple-cutter.

Let’s take a look now at the most worrying knife of all…

Knife One

At first glimpse, this “pocket knife” looks quite martial arts like, given the hole and the weird top edge of the blade and the spider logo.

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The logo marks this as a Spyderco knife ““ a large premium knife manufacturer of tactical and many other types of knives. This particular model is a Delica4 Emerson Opener retailing for about $109.95rrp. Of particular note about this knife is the hole and the top edge. The hole, a Spyderco feature, allows a thumb to flick the blade open very quickly. This knife is about speed.

But actually the thumb hole is not the real speed feature ““ that is reserved for the top edge curl.

This is a truly specialist feature known as an Emerson Opener or “wave”. The idea is that the curl in metal catches on the edge of a pocket edge on drawing the knife and opens it immediately (see videos below).

This is a speciality feature licensed from Emerson knives ““ Emerson being another feted “˜name’ knife designer. The wave is only present on two of Spyderco’s 330 knives listed on their website ““ the Delica and the ¾ inch larger sister knife the Endura (“the best self defence knife in the world” according to one enthusiastic teenager on youtube). That’s how specialist it is.

The job of the wave feature is to provide the fastest opening knife in the world bar none ““ faster than a flick or spring knife in fact. This video (many similar to be found) gives a rather disturbing insight into what the real attraction of owning this knife is to a hardcore knife knut like Raffaele; (remember when you watch this for the first time that the knife is closed inside that pocket and also enable the sound on the embedded player below by clicking off the mute)

If I thought my son had a penknife, but then actually saw him with this, we would be having a very long chat..

“Enough!” the deniers say?! “You’ve still got it in for Raffaele haven’t you?” they say?! Despite the replica combat knife on the bedroom wall, the designer Brian Tighe Design CRKT drop-point and the Spyderco Delica4 with wave design)?  “You’ve used prejudicial phrases like “hardcore knife knut” haven’t you?” they say?!

Sorry, but don’t look at me. They’re not my words.

They’re the words of Spyderco itself on its own webpage. See here and below. 

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Raffaele was out to impress Amanda and by his own admission both obsessive about her and a hardcore stoner. He also thought knives - proper knives with exclusive features by name knife designers not pocket knives were fascinating.

As with all of this case and any case, you REALLY need to look at the detailed evidence.

The overwhelming prevalence of skin-deep level of analysis / downplaying of this case by much of the deniers camp will lend and always has lent itself to people dismissing serious evidence as inconsequential based on their lack of understanding of what actually is in question.

The “mere pocket-knife” impression of Raffaele’s interest in knives is a clear case in hand. Raffaele’s father testified in court that his son carried a pen-knife. Some pen-knives or pocket-knives these really were…

As always with this case, when you take the time to look at the real detail, the reality you find is something far more disturbing…..

Thursday, March 04, 2010

Sentencing Report: Barbie Nadeau Quotes The Motive, Physical Evidence, And Alibis

Posted by Peter Quennell

Please click above for Barbie Nadeau’s full report on the Daily Beast website. Key excerpts.

1) The motive

“One can hypothesize that the bad decision came after the consumption of stupefying substances.”

But they disagreed on the motive. The prosecution lawyers began their case in January, 2009 by arguing that Kercher was killed during a sex game gone awry. By closing arguments, they had changed the theory slightly, trying to make the case that Knox resented her prissy British roommate and killed her in hatred. The jury rejected both theories, and the reasoning document declares that “the killing was carried out with no planning, no animosity and no revenge against the victim.

“The two young lovers, interested in each other and in the intellectual and cultural world around them, would not have made a conscious decision to kill Kercher. Instead, the judge wrote, they killed spontaneously under the influence of drugs. “One can hypothesize that the bad decision came after the consumption of stupefacente””stupefying substances””that Amanda verified in her testimony.”

As the jury saw it, Knox, Sollecito and Rudy Guede, the Ivory Coast native who was convicted for his role in Kercher’s murder after a fast-track trial in 2008, came to the house the two girls shared in order to get high. Guede used the toilet, then became aroused when he saw Knox and Sollecito making out. He went to Kercher’s room and made sexual advances toward her. The reasoning refers to evidence presented at Knox’s trial that Guede was the type of guy that “bothered women” when he was under the influence.

Then, according to the reasoning, Kercher cried out for help, but instead of helping her, Knox and Sollecito, their judgment impaired, decided instead to help Guede. The killing was based on “sexual-erotic violence” but not with Knox as the mastermind. The jury felt that it was Guede who led that attack, and the other two, too high to know better, joined in.

2) The physical and forensic evidence

The judge’s reasoning also underscores what the jury believed to be the most important elements of the prosecution’s forensic case. They believed that a kitchen knife with Knox’s DNA on the handle and a trace of Kercher’s on the blade was the weapon that made the large fatal wound in Kercher’s neck. They also referred to Sollecito’s “knife habits,” surmising that, as an admitted collector of blades, he likely used his own knife to make the second wound. The jury agreed that Sollecito and Knox conspired to stage a break-in in another bedroom to cover their tracks.

And they attributed an unidentifiable bloody shoeprint found on the pillow under Kercher’s body to Knox, even though the prosecution only implied that it was compatible with a woman’s shoe size. A spot of Knox and Kercher’s mixed blood in one of the bedrooms, found using Luminol, and four additional spots in the small bathroom the girls shared also swayed the jurors.

“These were left when Amanda was cleaning her hands and feet of Kercher’s blood,” the judge wrote.

3) The Knox and Sollecito alibis

The judge also wrote emphatically about the lack of credible alibi. Although Knox and Sollecito claimed to be at his apartment all night, “Not one phone call, not one meeting, no computer activity or any other element proved that they stayed at that apartment.” And the judge was particularly hard on Knox for accusing Patrick Lumumba, an innocent man, of the murder “knowingly and deceivingly.”

Overall, however, it appears that the jury was sympathetic to the two suspects, but ultimately felt that they committed a crime for which they must pay a hefty price.

Saturday, September 19, 2009

Trial: Defense Returns To Weapon While Most Of Prosecution Case Still Not Contended

Posted by Peter Quennell

Journalists were asked to leave the courtroom today during a weak repeat of the contention that the large knife was not THE weapon.

But the prosecution had already indicated months ago that they believed at least one other knife was involved.

Click above for Nick Squires on one report from the press room outside the court.

The black-handled knife, with a 6.5 inch long stainless steel blade, was shown for the first time to the court in Perugia where the 22-year-old American student and her Italian ex-boyfriend, Raffaele Sollecito, 26, are accused of sexual assault and murder.

A court official brought out the knife in a shallow white cardboard box marked “Evidence ““ handle with care” and showed it to the judge and eight jurors.

Miss Knox, of Seattle, who was wearing blue jeans and a red sweatshirt with a Beatles design, appeared impassive as the purported murder weapon was shown during the testimony of a forensic expert, Prof Giancarlo Umani-Ronchi.

She looked away when police photographs of Miss Kercher’s bloodied body were projected onto a giant screen in the courtroom.

Mr Sollecito, in a white jacket and rimless glasses, bit his fingernails as the alleged use of the knife in the killing was discussed by experts and lawyers.

A forensic consultant, Mariano Cingolani, said that of the three wounds on Miss Kercher’s neck, at least one was not compatible with the size and dimensions of the knife.

“Many other knives in general are more compatible with that kind of wound,” said Prof Cingolani. The wound was too narrow to match the knife, he said.

He added, however, that no firm conclusion could be drawn without knowing the exact angle of Miss Kercher’s neck, or the elasticity of her muscle tissue…

The former lovers, who could be sentenced to life in prison if found guilty, looked tired and nervous.

So there is a question mark over the role of the large knife but again, nothing definitive. No defense attempt to prove that no other knife was used.

Meanwhile, whole other universes of very damning prosecution evidence against Sollecito and Knox remain uncontested, like a herd of elephants in the room.

For example the very damning mobile calls.  And also the highly confused alibis.

Tuesday, July 07, 2009

Trial: Italian Reporting On Autopsy Consultant Seems Brief And Unswayed

Posted by Peter Quennell

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We had long been led to believe the testimony of Carlos Torre might be a blockbuster which could energize a lackluster defense.

Click above for the longest report of the day that we can find in Italian. Even ASCA’s report seems relatively brief and restrained. No sense of a breakthrough there.

ASCA reports that Mr Torre interpreted the wound pattern on Meredith to mean that a smaller knife was used for the final blow “with a blade of 8 cm which was partially extracted and plunged in at least 3 times”.

As the size of the wound is large, he claimed a repeated partial in-out action of the small knife, rather than blows from the larger kitchen knife with a blade of 16 cm found in the kitchen of Sollecito, on which traces of the DNA of both Meredith and Amanda Knox were found.

Also that the final blow occurred while Meredith was lying on her back, that there were no signs of three aggressors, that Meredith could not have cried out after the stab wounds, and that bloody footprints revealed under luminol were not the shape of Knox’s foot.

Mr Torre conceded under cross-examination that a wound of the size of the larger knife was also present, and he left the DNA evidence of Knox and Meredith on that larger knife unchallenged, thus undercutting his claim of a single perpetrator.

The prosecution team had presented extensive evidence that the bruise patterns and cut marks indicated that Meredith was kneeling face-down at the time. And that they all pointed to three attackers, rather than a single attacker wielding two knives with only one hand free both to hold her and to inflict bruises all over her body.

Judge Micheli in seeing most of the same evidence concluded in his report convicting Guede and sending the two to trial that a scream heard by witnesses in the houses above was probably Meredith’s last act before she was stabbed, not right after.

And last month, Sollecito’s defense team essentially went along with the prosecution experts’ claims for the autopsy and attack scenario, so for the first time the defense teams significantly differ.

Thankfully, besides being terse, the reporting was not very graphic, in this the most painful of all areas for those who mourn Meredith the most.

Sunday, June 21, 2009

How The Media Should Approach The Case If Justice Is To Be Done And SEEN To Be Done

Posted by Hellodalai

The American media are really playing with fire here.

This is one of the most seriously misreported cases in recent history, and a line really needs to be drawn.

Much of the media are doing no digging, consulting no Italians, repeatedly recycling discredited sources and those with a vested interest in the outcome, stating facts that are not facts, ignoring other facts that really are facts, revealing no understanding of how the Italian judicial process works, and often depicting the Italian professionals with contempt.

And so far no-one is really calling them on it.

From this perspective, I have been reading all the articles and information on this case for the past few days. I too was very disappointed in the NY Time pieces by Egan.  Rather than attempt to discuss the facts and evidence that are known so far, he painted “broad brush” strokes to argue that this trial is unfair.

The TIME magazine report just below - where the reporter basically allowed a Knox advocate to state her position unchallenged - is equally mediocre in terms of investigative and reporting quality. It was one of dozens that have done that.

Here is my own analysis of the case which I advance as the appropriate depth that EVERY reporter and print and TV analyst should aim to achieve before they start telling the rest of us what to think.

Motive

Egan points out that Amanda Knox had no motive to kill or participate in killing Meredith Kercher.

I agree that there seems to be little evidence on this issue.  One roommate testified as to tensions between Amanda and Meredith.  Roommate tensions are common, though, and rarely lead to murder.

Neither Rudy Guede, who has been convicted already, nor Raffaele Sollecito, who was Amanda’s boyfriend of less than two weeks, seemingly had motives, either.

All three were young adults who liked alcohol, music, marijuana, and sex (although Rudy has been described as a petty thief and small time drug dealer; other reports state he had no criminal convictions). None seemed likely to erupt into a murderous rage.

One of the downstairs male students testified that Guede expressed some interest in Amanda and said that Meredith was beautiful.  Sollecito wrote in a newspaper column that he was a 23 year old virgin when he met Amanda.

So Sollecito was vulnerable to Amanda’s influence.  Guede may have wanted to gain Amanda’s favor.  Add alcohol and drugs and group dynamics and - the threesome may have spun out of control.

Since the murder, Amanda’s behavior could certainly be questioned.  Who does cartwheels at a police station during an investigation of their murdered roommate?  What defendant wears a shirt to their murder trial that says “All you need is love” when the prosecution is trying to portray them as someone with out-of-control sexual behavior?

If this case rested solely on whether Amanda had a motive to kill Meredith, I would agree with Egan’s stance that the trial is unfair.  Egan seems to stop at that issue, however, and seems unwilling to examine all the evidence objectively.

DNA Evidence

One of the better reports on the case included this statement:

“But perhaps more damning even than the knife was Stefanoni’s testimony that a mix of Knox’s DNA and Kercher’s blood was found on the floor in the bedroom of a third roommate, Filomena Romanelli. While it might not be noteworthy to find mixed genetic traces of residents of the same house, Romanelli’s room is critical in this crime.

Her window was broken with a large rock that prosecutors believe was used to stage a break-in. The mixed Knox-Kercher trace was found after investigators used luminol, a substance used in forensic science to bring out blood that had been cleaned up.

In addition, Stefanoni testified that a mixture of Knox’s DNA and Kercher’s blood was found on the drain of the bidet, on the bathroom sink, and on a Q-Tip box in the girls’ bathroom.”

That is FOUR different blood samples with mixed Knox-Kercher DNA.  Yes, it does seem that the investigative methods were sloppy and not all samples may be reliable (I acknowledge that there are some problems with the prosecution’s case).

But I have yet to read even one article where a reputable DNA expert can explain why sloppy police procedures would result in four separate mixed blood samples.  I did read one explanation that Amanda bled from a pierced ear—thus providing some explanation, although weak, for why her blood may have been in the bathroom.  That doesn’t explain why her blood was in the bedroom of Filomena Romanelli (another of her roommates) or why her blood was found mixed with Meredith’s - or why her blood would be recoverable from an area that had been cleaned after the murder to eliminate evidence.

Similarly, the DNA evidence from Sollecito, found on Meredith’s bra clasp is not explained away by scientific reasoning.  True, the police left the clasp in Meredith’s room (which was sealed) for weeks and did not retrieve it, but DNA is not transferred by “flying DNA”; there is no “innocent” scientific explanation why Sollecito’s DNA (not sloughed dead cells, which do not contain DNA) would affix itself to a bra clasp worn by the murder victim after the clasp had been torn from her body.

As to the DNA evidence found on the knife located in Sollecito’s apartment,  the DNA sample from Meredith was very tiny, according to reports, and the DNA from Amanda could be explained by her using the knife at Sollecito’s apartment. (Sollecito explained Meredith’s DNA by stating she had come to his apartment for dinner with Amanda and that he had accidentally pricked her. But no witnesses have been found who remember Meredith ever talking about going to Sollecito’s apartment)

True, the knife is not the same size as most wounds on Meredith, but it is the same size as one wound. The knife showed evidence of bleach cleaning and some scratches (Sollecito’s apartment showed a lot of evidence of bleach cleaning, even though his maid did not use bleach to clean).

Clean up motives and evidence

I have yet to see a careful review of the testimony and possible conclusions that may be drawn from the known facts and circumstantial evidence, including the clean up after the murder—which, to me, are very compelling.

The neighbor has testified that she heard a very loud, long scream that night (presumably Meredith’s last), followed not long thereafter by the sounds of two to three different people running from the area (it was unusual to hear people running at that time of night).  The neighbor was 69 and could not remember exactly the date she heard the screaming, but she was firm that it was the night before Meredith’s murder was discovered.

It is not a stretch to link the screaming to Meredith, given that loud, long piercing screams are uncommon.  Also, a murderer or murderers would realize that Meredith’s scream may bring the police at any moment—so running from the crime would be expected. 

The uncontradicted testimony is that there was a fair amount of effort to “clean up” the crime scene (the defense merely claims that Knox and Sollecito were not involved). It also appears that whoever came back for the “clean up” also broke a window in Filomena’s bedroom (as mentioned, one of the two other roommates living upstairs; there were also four male students living downstairs in a separate unit), in an attempt to throw the investigating police off the scent. 

Filomena testifed that she found clothes strewn around her room the next day and that she had left the room tidy.  She testified that glass from the window broken in her bedroom was on top of those strewn clothes.  If the window was broken by someone entering the home who was intent on rape and/or robbery, then the glass would not be on top of the clothes as those clothes would not have been under the window then (Filomena also testified that she had valuables in plain view in her bedroom and that none were taken).

The evidence suggests that someone placed these clothes around the room and THEN broke the window to “stage a scene” (as there is no explanation for why anyone would have any motive to randomly take clothes and throw them around a room).

Let’s start with Guede first and the assumption that he came back to the home that night - either by himself - or with someone other than Amanda and Sollecito.

Guede’s motivation to come back to the crime scene would be to clean up the most incriminating evidence against him and to stage this crime scene to lead the police in a direction away from him.

Guede left DNA inside Meredith, bled on Meredith’s body, and left a bloody hand print on the pillow underneath Meredith’s head.  He also left feces in the bathroom toilet (the bathroom near Filomena’s bedroom - -not the “bloody” bathroom between Meredith and Amanda’s bedrooms).  He would know that if he came back to clean.  He would know that that evidence would be the strongest against him.

During this “clean up phase,” the DNA inside Meredith, Guede’s blood on Meredith’s body, the bloody hand print, and Guede’s feces in the bathroom toilet were all left untouched. 

The “clean up phase” spent a lot of time in the bathroom next to Meredith’s bedroom (it was also next to Amanda’s bedroom), the hallway, and Filomena’s bedroom, where the “break-in” was staged (it is possible at least part of this crime occurred in the bathroom, as Meredith’s blood was found on the bathroom light switch when it was in an up position - meaning it was touched when the light was on.  The bathroom had numerous droplets of her blood, some of which were commingled with Amanda’s blood.)

Despite the cleanup in Filomena’s bedroom, the police were still able to obtain DNA samples.  Guede’s DNA was not found in either the bathroom or Filomena’s bedroom.

Six bloody footprints from bare feet were identified.  One was visible to the naked eye in the bathroom and five were visible only after the police used luminol, which allows blood evidence cleaned by bleach to become visible under a special light.  The luminol did reveal five bloody footprints that had been cleaned up (one shoe print was also found under Meredith’s pillow - the print is consistent with the size of Amanda’s shoe).

None of the six bloody footprints are consistent with the size of Guede’s feet.  All six of these footprints are consistent with the size of Amanda and/or Sollecito’s feet.

Why would Guede concentrate his clean-up efforts on areas where there is little to no evidence from him and ignore the areas where there is substantial evidence of his involvement?  Wouldn’t he at least flush the toilet?

As to the staged “break-in,” would Guede be motivated to set this up?  If the police believed a “break-in” had occurred, would they then be led away from investigating Guede as a suspect?

If the police believed that a break-in had occurred, then they would focus on looking for someone who was either a complete stranger to Meredith or someone she would not readily admit to her home late in the evening if they knocked on her door unanounced.  Guede was not a complete stranger.  One of the four male students who lived in the separate unit downstairs testified that Guede sometimes came to the apartment of the four male students and met and talked to Amanda and Meredith there (the testimony is that Meredith dated one of those four male students).

The evidence suggests that Guede only slightly knew Meredith. So, Guede was not someone who could knock unannounced on Meredith’s door late at night (at least 9:30—after Meredith talked to her mother) and be readily admitted. 

Guede had no motivation to stage a “break-in” because a break-in would in no way lead the police away from his scent.  Plus, there is no evidence that Guede was ever in Filomena’s bedroom where the “break-in” was staged.  If he had participated in this staging, a footprint consistent with the size of his feet should have been illuminated by the police’s luminol.

It wasn’t.

Conclusions that jurors would normally draw from facts and the circumstantial evidence relating to the “clean up” and “break-in” point to someone OTHER than Guede participating in the “clean-up” and “staged break-in.”

Let’s now look at the assumption that Amanda and her boyfriend, Rafaelle Sollecito, were the ones who came back for the “clean up” and “staged break-in.”

If Amanda and Sollecito were with Guede when the murder occurred (accounting for the extra footsteps running away shortly after the last scream of Meredith) and then came back to get rid of evidence of their guilt, their motivation would be to clean up their blood and DNA evidence and lead police away from their scent.

As for whether Amanda bled that night, another roommate of Amanda’s and Meredith’s, Laura, testified that she saw a a mark under Amanda’s chin the day after the murder that was not there the day before the murder; Laura testified the mark was not a hickey as a hickey would have been purple and more round. 

I have read two different comments on this issue from Amanda’s father.  One stated that the mark was merely a hickey and is evidence she spent the night with her boyfriend.  Another was that a physician examining Amanda on Nov. 6th - -the murder occurred the evening of Nov. 1st - did not note a mark under the chin.  (Interestingly, the police interrogating Amanda the next day did not report such a mark, either).

I then found a photo that was posted online taken of Amanda the day after the murder.  It clearly shows a mark under her chin—and would account for her blood being found at the apartment.

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If Amanda and Sollecito did the “clean up,” they would be motivated to leave evidence of Guede’s guilt and point the police in his direction.

Forensics don’t show either way whether bleach was used to clean up Meredith and Amanda’s apartment, though it was used in Sollecito’s apartment AND on the knife found in his apartment containing the DNA of Meredith and Amanda. 

The Conad store owner reported the presence of Amanda in the household cleaners part of his store early on the morning after the murder (when Amanda and Sollecito contend they were asleep) although rumored receipts for bleach were not presented at trial.

Meredith’s body, which contained Guede’s DNA and his blood (mixed with hers) was not cleaned and Guede’s feces was not flushed from the toilet.

The bathroom, which even after the cleaning, contained Amanda’s blood mixed with Meredith’s and a bloody footprint which is consistent with the size of Sollecito’s foot (trial testimony was that it was “likely” Sollecito’s footprint), had a lot of cleaning activity.

The hallway and Filomena’s bedroom, which even after the bleaching contained Amanda’s blood mixed with Meredith’s and bloody footprints, was the site of a lot of cleaning activity (these footprints were all consistent with the size of the feet of Amanda and Sollecito, but not consistent with the size of Guede’s feet) .

The “cleaning” evidence, and conclusions which may be drawn from it, point to Amanda and Sollecito as participants.

Would Amanda and Sollecito have a motive to stage a break-in?  Amanda obviously had a key to the unit and did not have to break into her own apartment.  If there was no sign of a break-in, police would probably focus on people who had a key to the apartment or friends of Meredith she would readily admit to her apartment at 9:30 at night.  If there was no sign of a break-in, police would question Amanda and Sollecito at length - and they would obviously know that.

Amanda and Sollecito had a strong motive to stage a break-in to focus police on looking for a stranger, or someone like Guede who only knew Meredith very casually.

What about the next morning?  Let’s first assume Amanda was innocent and she is being truthful when she testified that she did not come home until around 11:30 the next morning.

Amanda testified that when she came home around 11:30 a.m. that the apartment door was open, that there was visible blood in the bathroom (which would have been numerous scattered blood drops, a ten inch smear on the bathroom door, and a bloody footprint on the floor) and that there was feces in a toilet.  Amanda says that she called out for Meredith and no one answered.

She then took a shower and went to Filomena’s bathroom and used her dryer to dry her hair (this is the bathroom with Guede’s feces;  this toilet is different than American toilets in that it had a large flat area so that the standing water in the toilet did not submerge the feces) and returned to her boyfriend’s apartment.

If Amanda were truly innocent when she arrived that morning, wouldn’t she also try to open the door to Meredith’s bedroom after Meredith did not answer, even when she banged on her door more than once?  Amanda’s fingerprints were not found on the door knob and she has never testified that she tried to open the door.  Sollecito testified that when he arrived later with Amanda that he tried to open the door - and his fingerprints are on the door knob.

If Amanda were innocent, wouldn’t she text Meredith, as she did several times two days before?  Wouldn’t she call both of Meredith’s cell phones and let them ring to see if they were in her bedroom? (Phone records show she called each phone one time; one for three seconds and the other for four seconds, despite Amanda telling Filomena that day that she had called Meredith’s cell phones and that the phones just kept ringing) 

If Amanda were innocent, wouldn’t she also call out for Filomena and Laura - because she would not know for sure if they might have returned that morning (she knew Filomena had spent the night in town and that Laura was in a nearby town)?  Wouldn’t she look into their bedrooms (Filomena’s door was closed that morning, according to Amanda; Sollecito says it was open) and have noticed that Filomena’s bedroom window was broken and her clothes were strewn about? (When Amanda first called Filomena she did not mention that Filomena’s bedroom had been broken into).

If Amanda were innocent, wouldn’t she have just flushed the exposed feces down the toilet?

If Amanda were innocent and truthful, wouldn’t her hair three hours later look like it had been washed and blow dried that day?  Look again at the photo posted above.  It was taken about three hours after the alleged washing and blow drying.  Is that the hair of a woman who washed and blow dried her hair three hours earlier?

Wouldn’t Amanda have noticed that the lamp in her bedroom, which was the only source of light for that room, was missing? (Police later found it in Meredith’s room).  Wouldn’t she have immediately noticed the missing lamp when she first entered her bedroom that morning so that she would have immediately either left the apartment without taking a shower or called the police to come over? (Police and phone records show that Sollecito didnt call them until 12:54, even though the Postal and Communications Police had been at the apartment with Sollecito and Amanda since 12:26 - the Postal Police unexpectedly showed up at the apartment because Meredith’s cell phones had been found.)

People react differently to unexpected happenings and Amanda may not have done all of those things, but surely she would have done at least one of them.

If Amanda were truthful about showering and drying her hair, wouldn’t her fingerprints be in both bathrooms? (Since these activities would have occurred AFTER the clean up).  The police only found one of her fingerprints in her residence - on a glass in her kitchen.

As to this time frame, what about the recent trial testimony of Amanda’s mother that Amanda told her in their first phone call that day that she thought someone was in her apartment?  Cell phone records place that call at 12:47, some 21 minutes after the Postal Police arrived. (A nearby video camera documents that time, as does Postal Police log records;  the defense has tried to argue that the Postal Police did not arrive until after 1:00 p.m., but do not have evidence for that position.  In fact, Filomena testified that she arrived back at her apartment before 1:00 and that the Postal Police were already there.)

Postal Police testified that both Amanda and Sollecito were in Amanda’s bedroom with the door closed at 12:47 - the bedroom with no lamp or overhead light (neither Amanda nor Sollecito mentioned to the Postal Police or Filomena when they emerged from that bedroom after many minutes that the only lamp in the room was missing).

Let’s keep assuming Amanda was innocent.  Would she have come back to her apartment with Sollecito, still not having called police, and then start a load of washing of Meredith’s clothes? (The Postal Police said the washing machine was running when they entered;  Filomena, who arrived a little later, said that the washing machine was still warm and contained Meredith’s clothes.)

Amanda has testified that she got out a mop and bucket the first time she went to her apartment that day and took it back to Sollecito’s because there was water on his apartment floor from water used in cooking pasta the night before (Sollecito said, however, that the water was from a broken pipe;  Sollecito’s diary written in prison talks of a dinner of stir fry mushrooms and vegetables).

Who has water spills from cooking pasta so large that the next day it is still puddled to the degree it needs to be mopped?  Who voluntarily carries a mop and bucket several blocks to clean up water from cooking pasta the night before? (Especially a person who has been labeled in trial testimony as messy and unkempt in their cleaning habits).

If Amanda were innocent, wouldn’t she and Sollecito have called the police after Sollecito tried to open Meredith’s locked bedroom door and couldn’t open it?

Instead of calling the police, Amanda and Raffaele went outside and stood next to the mop and bucket.  Why didn’t they just put the mop and bucket back up in the apartment when they first arrived?  Why leave it outside the apartment?  Why then go back out and stand next to the mop?

If Amanda and Sollecito were innocent, that means that Guede (and perhaps one or two accomplices) murdered Meredith, then ran away, and then came back at some point and cleaned up the crime scene PARTIALLY (but ignoring and leaving the most damning evidence against him) and THEN GUEDE CAME BACK that morning after Amanda had showered and left - so that GUEDE could do a LOAD OF WASHING of Meredith’s clothes - presumably blood stained, all the while ignoring his feces in the toilet and his bloody hand print on the pillow under Meredith’s body - only for GUEDE to then leave again right before Amanda and Sollecito arrived (so the washing machine would still be running when the Postal Police arrived a short while later).

What type of person or persons would come back to a crime scene to clean it up?

The most likely person to return to a crime scene for a clean up is someone who knows that they can do a clean up with little chance of being caught. 

Guede might have known that the four male students downstairs were all away due to his occasional appearances there.  But how would Guede know that Filomena and Laura, the other two upstairs roommates, would not come back either that night or in the morning?

Amanda and Sollecito, on the other hand, would know that everyone who lived in the house would be gone and that they could do a clean up that would take some time and have a good chance of not being caught in the act.  Only the unexpected appearance of the Postal and Communications Police interrupted the mopping and cleaning (as there was still a ten inch blood smear on the bathroom door near Meredith’s bedroom and numerous visible blood droplets).

No one else other than Amanda and Sollecito, and who may have been involved, had such knowledge.   

Conclusion

     

The facts, testimony, and conclusions that may reasonably be drawn from the evidence, including circumstantial evidence (that is what juries do all the time), lead me to believe that Amanda will be found guilty.

Let any reporter or analyst run the case through their minds at this depth and then make sure that at a minimum, they keep their cool and don’t misrepresent.

When I read an article or blog in the New York Times or Time magazine, I expect thorough, well-reasoned, well-researched, investigative journalism. Judicial cases DEMAND it.

Instead, here I have found articles that IGNORED the evidence and some very mediocre journalism. What happened to journalistic standards?  Where is the public outcry against the U.S. media’s handling of this case? 

For the sake of true justice, a line now needs to be drawn.

Trial: Defense Witness Makes A Claim About The Second Knife

Posted by Peter Quennell

Click above for the report from an unnamed BBC correspondent. The key parts are quoted below.

The issues today were the role of the second smaller knife which the prosecution had already proven part of the crime; and the size of Meredith’s room.

The stab wound in the neck of a British student killed in Italy was from a shorter knife than the one thought to be the murder weapon, a court was told.

A coroner said that Meredith Kercher was killed with a 3ins to 3.5ins knife, a lawyer for the Kercher family said. But prosecutors say a 6.5ins knife found at the home of one of the accused matched Ms Kercher’s wounds…

Coroner Francesco Introna was called to give evidence for the defence, according to a lawyer representing the Kercher family, Francesco Maresca.

Prosecutors say a 6.5ins knife found at Mr Sollecito’s house matched the wounds and could be the murder weapon. They also say the knife had Ms Kercher’s DNA on the blade and that of Ms Knox’s on the handle.

As well as questioning the length of the knife, Mr Introna also said that no more than a single attacker could have assaulted Ms Kercher, according to Mr Maresca.

However, when cross-examined by prosecutors, Mr Introna conceded he had never been to the house where Ms Kercher was killed and used forensic data to work out the size of the bedroom.

Mr Maresca said that when the court went to inspect the scene of the crime in April, six or seven people could fit into the room.

The reporting today as the defense launches into its portion of the trial to attempt to rebut the evidence seemed thinner than earlier in the trial.

Saturday, June 06, 2009

Trial: Friday’s Testimony Bolsters The Prosecution’s Case

Posted by Peter Quennell

[click for larger image, courtesy AP]

Andrea Vogt now reporting for The Independent.

Upon arrival, the Kercher family quietly took seats in the courtroom behind their Florentine lawyers, Francesco Maresca and Serena Perna, who opened their case with two expert witnesses: a coroner, and a leading forensic geneticist from a Florence hospital.

Mr Maresca told the court that the expert witnesses “sustained the prior results and valuations of the coroner who performed the autopsy and the forensic evidence specialists who already testified”. He added: “And for the first time today, we also heard that the bruises on the victim’s hips were consistent with a sexually violent approach.”

Professor Gianaristide Norelli testified that the multiple lesions on Ms Kercher’s body were consistent with being held and attacked by more than one person. He said she died of suffocation and interpreted her stab wounds as having been inflicted as threats during a struggle. The wounds, mostly on the side of her neck, were possibly inflicted by two different knives, he said, but noted that one of the stab wounds was compatible with the alleged murder weapon.

Professor Francesca Torricelli told the court that she believed the samples of Mr Sollecito’s DNA found on Ms Kercher’s bra clasp was a significant enough amount that it was unlikely to have been left by contamination. She also sustained a previous forensic biologist’s findings that Ms Knox’s DNA was found on the handle and the victim’s on the blade.

Alessandra Rizzo reporting for the Associated Press:

Forensic expert Gianaristide Norelli, a witness called by the Kercher family, said the main cause of Kercher’s death was suffocation.

Court documents have said suffocation was caused by the hemorrhage following the neck wounds. But Norelli said suffocation was also aided “manually” by forcing the victim’s mouth and nose shut and by strangling her.

This, Norelli argued, showed a clear intent to kill, while the neck wounds may have been inflicted with the intent to scare or threaten the victim. He said that Kercher’s own movement may have inadvertently contributed to making the stab wounds deeper.

The wounds were compatible with a kitchen knife the prosecution says might have been the murder weapon, Norelli said. The knife, which was found at Sollecito’s house, has a 17-centimeter (6.69-inch) blade….

Prosecutors say Knox’s DNA was found on the handle of the kitchen knife, and Kercher’s DNA was found on the blade. Francesca Torricelli, a DNA expert also called by the Kercher family, confirmed the findings of the prosecutors.

“I have no doubt” the traces are compatible, she told the court Friday. Torricelli also confirmed the prosecutors’ finding that DNA compatible with Sollecito’s had been found on the clasp of Kercher’s bra.

And an unnamed writer reporting for the Daily Sun.

The parents of Meredith Kercher “” Arline and John “” spent their first day in court yesterday under the unwavering stare of her alleged killer Amanda Knox.

One witness said: “It was very unusual. I’m not sure if she was looking for sympathy or trying to offer it, but Meredith’s parents never looked at her.”

[click for larger image, courtesy AP]

Friday, May 29, 2009

Trial: More On The Violent Crimes Unit’s Reconstruction Of The Violent, Prolonged Attack

Posted by Peter Quennell

Grim-faced expert witnesses from the Violent Crimes Unit in Rome enter court

1. Reconstruction Of The Attack On Meredith

Judge Massei closed the court for much of the time. No English-language reporters were there.

Nevertheless, reports in La Nazione and other Italian media described the reconstruction of the final attack on Meredith in the court with the aid of many photographs and graphics.

Giuseppe Codispoti, Director of the Analysis of Violent Crime Unit, said in his deposition that the evidence pointed to three subjects in addition to the victim being present in the room at the time.

The evidence included the many wounds on Meredith, the state of her clothing, and the locations and shapes of the bloodstains on the walls, the wardrobe, and the floor.

Wounds to Meredith’s right hand pointed to a desperate attempt to ward off one or several attackers with knives while she was being held by her other arm.

The director of the Violent Crime department, Edgardo Giobbi, told the court that when, on the day after the murder, he handed Knox (not yet a suspect) a pair of shoe covers before entering the apartment below hers, she swiveled her hips and said “oopla.” This attitude made him turn his “investigative attention” on her, he said.

This was dramatic and telling testimony, and for some in the courtroom apparently quite hard to take.

Below: One of the images used in their detailed reconstruction of the final frenzied act in Meredith’s bedroom that suggested three people had to be involved.

2. Prior Testimony That Relates

Judge Micheli summarized the same forensic evidence and concluded for purposes of convicting Rudy Guede and of sending Knox and Sollecito to trial that it did point to three people being involved.

Judge Micheli also concluded that, as part of a cover-up, Meredith was later moved from the location below (by the wardrobe and the window) to where she was found, several feet to the left (by the bed).

3. Defensive PR Reaction To This Tough Talk

In their attempt to ridicule and undermine this compelling evidence, CBS News (48 Hours) in their recent very slanted report repeatedly showed bizarre caricatures of this scene by an Italian cartoonist.

None were remotely correct. That was not, we think, CBS News’s finest hour. They have been very silent on it since.

The paid Candace Dempsey defense blog on the Seattle PI website took a shot at ridiculing the reconstruction image above.

Something rather incoherent to do with not being specific enough about the figures. But the image above was one of a number that the witnesses used.

As real crime experts in the field would all know, it was deliberately not more specific because it incorporated only the known hard evidence.

Contacts of ours in NYC associated with law enforcement are giving the reconstruction an A. It was a careful and clever bit of work.

DNA Evidence: The Myths Start To Come Crashing Down

Posted by Nicki

[click for larger image; rule and annotations by Kermit]

The DNA evidence is proving to be as well-handled and as incriminating as DNA evidence ever is at such trials.

The last two hearings have very publicly exposed several of the key myths which have been aggressively propagated over the Internet and through other media for many months.

Let’s first speak about the double knife DNA. It has now become pretty obvious that:

• It doesn’t match half of Italy as falsely claimed
• It doesn’t have a 20% chance of being Meredith’s as falsely claimed
• Stefanoni never declared herself that the DNA “was unreliable” as falsely claimed
• The DNA has not been amplified “500 times” as falsely claimed

Patrizia Stefanoni has not stated that Meredith’s DNA was extracted 500 times from the knife sample, as some people with what seemed a google-level knowledge of molecular biology were claiming to muddy the waters.

The DNA was actually extracted 50 times from Meredith’s specimens and was used to compare it to other biological traces, including the one found on the knife. And it provided the forensic team with good samples to be compared to the traces found on the knife.

Two genetic profiles are identical and therefore belong to the same individual if a) they are in the same position, and b) they have identical shape and dimension. In this case, each peak produced in the original samples exactly corresponds to the peaks yielded by the knife sample, position, shape and dimension”¦ Say so long to the “matching half of Italy” myth!

Furthermore, Stefanoni excluded any possibility of contamination in the lab, stating that it had never once occurred in her lab for at least the last seven years, and every precaution was taken in order to exclude possibility of contamination so that different traces are not mixed. 

Contamination during the collection phase was also excluded: the forensic team that found the knife was a different one from those who searched the cottage, so how could Meredith’s DNA possibly have been “transferred to the knife”? 

Furthermore, the knife was put in a shoe box after it was bagged, and it stayed there until it reached the lab. And once again… DNA doesn’t fly, it doesn’t creep, and it sure doesnt penetrate a plastic bag!

Now let’s speak about the bra clasp.

The DNA found on the clasp has been defined as abundant and identified as belonging to Sollecito without any doubt. It should have been collected earlier in the process, but DNA evidence is often collected weeks or months after the crime when an object involved is unearthed.

The chances that it has been contaminated are at zero: the sample was found under the pillow on November 2, during the first search, and collected on December 18th when the second search took place by a different team.

During this entire time, the clasp was laying on the floor of what has been testified to have been a completely sealed crime scene. So when and how could any contamination occur?

Excluding a spontaneous migration of Sollecito “˜s DNA on the clasp from some unidentified location in the murder room or in the cottage, it could have only taken place during either the first or the second handling of the sample, so the fact that the clasp was recovered weeks later really bears no relevance.

And additionally, where could any abundant amount of Sollecito “˜s biological matter come from, if besides that on the bra clasp, the DNA corresponding to his genetic profile was only found on a cigarette butt? 

Perhaps this is why Sollecito’s lawyer Ms Buongiorno is now claiming that the bra clasp was contaminated in the laboratory. She is reduced to having to claim that in effect Dr Stefanoni applies strict laboratory procedures when testing Guede”˜s or other peoples’ specimens, but somehow miserably fails when the samples belong to Sollecito and Knox.

Finally, let’s not forget that Rudy Guede’s DNA was not found “all over” the victim, but only on the right side of her bra, on the left cuff of her jumper, and inside her body. If passive transfer of DNA is so easy to happen, and if Guede is the only one who physically attacked Meredith, how comes his DNA was found only in these three places on the victim’s body?

DNA is NOT easy to transfer. Dr Stefanoni is absolutely correct when she says that “transfer of DNA must not be taken for granted nor it is easy to happen, and more likely to take place if the original trace is aqueous, not if it is dry”.

About the possibility of contamination having taken place in the lab, this is a risk that everyone working with PCR is well aware of. It is certainly not probable that it could occur every time a biological sample is tested. In fact, it is very unlikely to happen when the routine strict precautions are taken.

And there is no doubt that Dr Stefanoni was extremely cautious when handling any of these samples. 

I can see the reason for the improbable reach of the defense teams: since their clients deny any involvement, the positive DNA results “must” be contaminated - what else could they possibly say? Regarding this evidence, it is the only argument that they have available.

Finally, Dr Stefanoni has an international reputation and is considered one of the best in the field today. Questioning her credentials really makes no sense at all. But those too have come under attack.

Edited to add: On the issue of DNA transfer, from today’s hearing (La Nazione)

“The contamination theory has been discussed again today: Ms Bongiorno repeatedly asked the forensic witnesses information regarding the techniques used to collect the samples found in Meredith’s house, but PM Manuela Comodi showed the Court that contamination did not occurr by asking the forensic witnesses: “Using the same gloves, you have touched the victim’s socks after working on other samples. Could you tell me what the result of the sock analyses was?”

The witness answered:  “No foreign DNA nor genetic traces have been found”. Another demonstration that DNA passive transfer just doesn’t occur so easily.  Differently, the probabilities of obtaining a contaminated sample would be so high that DNA testing would hardly be of any use in crime investigations.

Wednesday, April 22, 2009

Understanding Why The DNA Is On The Knife

Posted by Peter Quennell

[click for larger image]




Our DNA poster Nicki has been careful not to exaggerate the impact as evidence of the DNA on the knife found in Sollecito’s apartment.

She accepts that in the eyes of the court there could be question marks over the size of the sample and the fact that the tests could not be repeated.

However, as the knife appeared to have been thoroughly cleaned with bleach, some remain intrigued that any DNA at all was found.

Here is a short piece explaining why. This article by Juliet Lapidos was posted on the Slate site in November 2007. But we haven’t seen better, and it is still often referred to.

Slate 20 Nov 2007
How To Clean a Bloody Knife: Does DNA come off with soap and water?
By Juliet Lapidos NYTimes Staff Writer

Investigators in Perugia, Italy, have found new evidence linking a 20-year-old American exchange student, Amanda Knox, to the brutal stabbing death of her roommate, British student Meredith Kercher. According to the latest reports, Knox and her Italian boyfriend, Raphael Sollecito, cleaned the alleged murder weapon””an 8-inch black-handled kitchen knife””with bleach. Nevertheless, police discovered Kercher’s DNA on the tip and Knox’s DNA by the handle. Is it possible to clean DNA off a knife?

Yes, if you know what you’re doing. Knox and Sollecito were on the right track: Bleach contains sodium hypochlorite, an extremely corrosive chemical that can break the hydrogen bonds between DNA base pairs and thus degrade or “denature” a DNA sample. In fact, bleach is so effective that crime labs use a 10 percent solution (one part commercial bleach to nine parts water) to clean workspaces (PDF) so that old samples don’t contaminate fresh evidence. Likewise, when examining ancient skeletal remains (PDF), researchers first douse the remains in diluted bleach to eliminate modern DNA from the surface of bones or teeth.
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So, why did Knox and Sollecito’s bleaching gambit fail? It’s difficult to swab a knife thoroughly. Dried blood can stick to the nooks and crannies in a wood handle, to the serrated edge of a blade, or become lodged in the slit between the blade and the hilt. With help from a Q-tip, it’s possible to eliminate most stains, but what’s not visible to the naked eye might still be visible to a microscope, and sophisticated crime labs need only about 10 cells to build a DNA profile.

Bleach is perhaps the most effective DNA-remover (though evidently no methodology is failsafe), but it’s not the only option. Deoxyribonuclease enzymes, available at biological supply houses, and certain harsh chemicals, like hydrochloric acid, also degrade DNA strands. It’s even possible to wipe a knife clean of DNA-laden hair follicles, saliva, and white blood cells with generic soap and warm water. The drawback to this last method is that the tell-tale cells don’t just disappear once off the knife. They linger on sponges, in drains, and even in sink traps, where wily investigators search for trace evidence.

There appears to be a great deal more DNA evidence than merely what is on the knife, of course, and early in the trial the known luminol-evidence universe also expanded.

The court was told that AK-sized and RS-sized footprints appeared under luminol on the floor of Filomena’s room.

Nicki’s two Powerpoints on the DNA can be seen here and here and Kermit’s Powerpoint (pre the new evidence) on the luminol can be seen here.