What do we know about hair decomp ***REVISITED***

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Didn't it later turn out that the hairbrush that Cindy gave LE was actually one used by both Casey and Caylee? And, IMO, Casey's hair looks considerably darker to me and of a different texture than Caylee's. So, I'm not sure how all the hairs from the hairbrush could be microscopically similar to Caylee's? I could understand if they sorted the hairs from the hairbrush into two different groups, but to just say overall, they are similar, doesn't make sense to me. Any thoughts on this?

Well, I know that the two hairs have the same mDNA, at the core.
 
Well, I know that the two hairs have the same mDNA, at the core.

"the tiny details that make the difference between the DNA of two individual people are not visible through a microscope."

http://www.nytimes.com/2008/06/03/science/03qna.html?_r=1

When you look at human hair microscopically, you are looking at these elements:

cross-section shape
cuticle thickness
cuticle margin
outer cutical scale profile
cutical surface
pigment density
pigment granule size
pigment distribution
cortical texture
medulla continuity
medulla capacity
and
damage
 
I wonder what ever became of the carpet cleaners. I don't recall seeing test results on those.
 
Particularly the wet vac. For a trunk that was completely full of junk, it looked odd to LE that only one hair was found. If decomp had been vacuumed out of the trunk liner carpet, it could still be in the hose of the wet vac. And regardless of how clean the trunk was, the cadaver dogs still hit there (despite the extra chloroform which might have come from a number of sources). That's a dichotomy that might prove interesting.
 
I have a question, not sure if this was discussed. Do they necessarily need the hairbrush that Cindy gave LE. Can't they just match the hair from the duct tape to the hair in the trunk for a 100% match?
 
I have a question, not sure if this was discussed. Do they necessarily need the hairbrush that Cindy gave LE. Can't they just match the hair from the duct tape to the hair in the trunk for a 100% match?
To use one of Casey's most favorite words?

Absolutely!!!:woohoo:
 
I could only get one of the links there to work for me, Marspiter, but I'm still trying. It's the one where the FBI person is saying upon visual examination of the hair that he/she thinks there is the appearance decomp on one hair.

Okay, so this is the one hair that was mentioned early in the case. Thank you. I guess we'll hear a lot about this hair in the trial.
 
Thr decomped hair WAS found in the trunk. The other trunk contents are in another report. Check the earlier doc dumps.

you must have missed my response to Marspiter and Faefrost, that's what I was asking for and they provided a link regarding the one hair :)
 
you must have missed my response to Marspiter and Faefrost, that's what I was asking for and they provided a link regarding the one hair :)

Well....I guess the question would be: How many hairs with decomp would one need? 3, 5, 7? IDK?
Thank goodness they have the one, I have a feeling that one will be sufficient. :)
 
No, I don't mean that there would need to be more than one Pondering. :) I was just looking for the link to that particular item of evidence, the one hair that was mentioned early in the case as possibly exhibiting decomp.

Well, there is sure to be a lot of "hairsplitting" on the one hair at the trial. I agree it will be important. :)

per KL's FBI cover email Aug 1 p 8907

"My report is on Cary's desk and I've spoken to the poc in Tampa--TFO Steven McE....and advised of my results (and advised that I can't say absolutely that the hair came from a dead body but is consistent...)"
 
though, reading on KL did also write (page 8908)

from KL FBI Aug 1

"If I find more than one hair w/decomp, it makes the case stronger that it's from a body rather than from some other random possibility of why one hair would look like that."
 
And maybe she did find more hairs with the same characteristics but that evidence just hasn't been released yet. :)
 
To use one of Casey's most favorite words?

Absolutely!!!:woohoo:
In bad form, I know, I am quoting myself as I intend to present evidence hereafter to prove that I was right!

Well....I guess the question would be: How many hairs with decomp would one need? 3, 5, 7? IDK?
Thank goodness they have the one, I have a feeling that one will be sufficient. :)
One is sufficient...

No, I don't mean that there would need to be more than one Pondering. :) I was just looking for the link to that particular item of evidence, the one hair that was mentioned early in the case as possibly exhibiting decomp.

Well, there is sure to be a lot of "hairsplitting" on the one hair at the trial. I agree it will be important. :)

per KL's FBI cover email Aug 1 p 8907

"My report is on Cary's desk and I've spoken to the poc in Tampa--TFO Steven McE....and advised of my results (and advised that I can't say absolutely that the hair came from a dead body but is consistent...)"
He later gets to compare many to the one he has and whala! they are consistent!

And maybe she did find more hairs with the same characteristics but that evidence just hasn't been released yet. :)
They found the entire hair mass that came off of poor baby girls head and looky here:
http://www.wftv.com/download/2009/1009/21252103.pdf
page 594 of 1405, it states the following:
"The previously reported Caucasian head hair exhibiting characteristics of apparent decomposition at the proximal end (specimen Q12.1, FBI Laboratory report dated August 1, 2008, FBI Laboratory Number 080730003 TO LF) exhibits the same microscopic characteristics as the Caucasian head hairs found in Q59. Accordingly, specimen Q12.1 and the Caucasian head hairs found in specimen Q59 are consistent with originating from the same source.
 
Note that the date that the confirmation form has on it is 12-19-08...referring to the form from my previous post.
Did the defense get these documents? :waitasec: Why have they done this entire media blitz that OCSD delayed ID? The date on this form would seem to indicate to me that this was confirmed on the date on the form, and coincidentally, isn't that the date they announced that the remains were conclsively CAYLEE? Seems like the defense needs to look at the discovery instead of whining about not getting it...:banghead:
 
Well....I guess the question would be: How many hairs with decomp would one need? 3, 5, 7? IDK?
Thank goodness they have the one, I have a feeling that one will be sufficient. :)

That's all they had (one hair) in the Scott Peterson trial.
 
I hope it's ok to bump this, seeing as how it may relate to the letter published yesterday.
 

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