So you don't believe that finding fibers that matched the clothing PR wore on the night of murder on the paint tray, the blanket, the ligature, and the duct tape incriminating? IMO, that's too much to be a coincidence. If you want to argue that JB could have had her mothers fibers on her from earlier, then how would you explain her fibers on the paint tray? If you want to say PR's fibers transferred from JB to the killer, the same could be said for the DNA. A friend could have touched the bike she got for Christmas, and the DNA could have been transferred when she rode it that day. Or PR could have touched someone before changing JB into pajamas that night.
You're right, both could be of innocent origin. I don't discredit the DNA, but I do question how it ended up where it did and it's importance in relation to the case. Read the article by Charlie Brennan. "In exploring that theory, investigators obtained unopened "control" samples of identical underwear manufactured at the same plant in Southeast Asia, tested them - and found human DNA in some of those new, unused panties."
The murder happened in December in Colorado. Why wouldn't she wear a jacket? She answered the door the next morning in the same clothes she wore the night before. If she wore the same clothes the next morning, why wouldn't she that night?
I don't consider either pieces of evidence (DNA or fiber) as a critical point in the investigation because we don't know the origin of either.
BBM
Six Degrees of coincidence, or at least Five Degrees*:
Transfer is transfer. I agree. And Id choose innocent fiber transfer over an absurd thought that the intruder grabbed the jacket off the back of a chair and wore it to the crime scene or even (coincidentally) owned the same Essentials jacket as PR. But its the
number of other coincidences which cause me and some others pause, or, at least for ST, Kolar and RDI, strain credulity. Coincidences such as:
1) The intruder knew or just got lucky regarding where PRs painting supplies were kept. He also knew where PR kept tablet and pen, grabbing said tablet and incriminating PR, that is, it was her tablet, not JRs tablet.
2) Intruder also knew that JR could easily obtain the $118,000 because of his bonus, an amount even JRs son JAR called an absurd amount of money for return of JB.
3) Intruder knew how to write enough like PR or mimic her linguistics, that it did in fact fool some of the experts.
4) The intruder knew the location of that very hidden room in the basement.
5) Intruder knew that the note would be seen first thing in the morning, when PR went to make coffee, if the RN were left on the back spiral stairs. (He was prescient?)
(* Imo, there are probably more "Coincidences," but I dont have access to all the evidence, which Kolar, ST and the GJ saw.)
MHO.