More specifically, Kolar explained the DNA on the garrote and wrist bindings to be tDNA, correct? And this tDNA, which can be as few as 5 cells, from the items did not match; thus, the tDNA found on the garrote and wrist ligatures belonged to two separate unidentified male contributors.
The broken paintbrush transforms the nylon cord tied around it into a garrote, immho.
However, since the paintbrush was used prior to Dec. 26 for the purpose for which it was sold, can we logically expect that the tDNA on the garrote was possibly once touched by an unidentified male during art classes that Patsy took at the University? Or maybe one of Burke's friends picked it up when it was stored in the Butler's kitchen in the home.
Further, can we logically expect that the nylon cord was once touched by or coughed on by an unidentified male who stocked the shelves at the store where it was purchased?
IOW, since DNA cannot be time stamped, the tDNA does not necessarily belong to an intruder from the night of Dec. 26.
http://www.bodetech.com/forensic-solutions/dna-technologies/touch-dna/
A bit off topic but an interesting comment is made by Patsy during her 1997 interview:
Patsy was questioned about, Brian Perry, the maintenance custodian at their church who had an art studio under the church sanctuary. She was asked if she ever took paint or art classes from him. She said, "No".
"And he also has a
14 painting studio space in the basement of the
15 church, under the sanctuary.
16 So and they are just kind of, I was
17 given to understand, sort of wards of the
18 church, because I had questioned -- I said, you
19 know, that space where the little house is could
20 be a new Sunday school and offices and you know.
21 And it was really strange.
I mean kind of like
22 mostly told don't go there, you know. "
.