I probably shouldn't touch the subject of DNA (
rimshot:giggle
because I really don't know enough about it to feel comfortable with it. However, in reading the BODE report on the nightgown, I think Patsy was excluded because of the wording in the report.
There were four samples taken from the nightgown. Three of them were apparently not sufficient to "include or exclude" anyone whose DNA they compared it to. But one sample (2S07-101-07A, the exterior and interior of the bottom front of the nightgown) was good enough to get at least two "hits." Here is the exact wording:
The DNA profile obtained from sample 2S07-101-07A contains a mixture of at least two individuals including the victim and at least one male contributor. The individuals associated with samples John B. Ramsey, John Andrew Ramsey, and Melinda Ramsey are excluded as possible contributors to the mixture profile obtained from sample 2S07-101-07A. The individuals associated with Burke Ramsey and Patricia Ramsey cannot be excluded as possible contributors to the mixture DNA profile obtained from sample 2S07-101-07A.
As I read this, one of the two individuals in the DNA sample is the victim (JonBenet would be expected since she had worn it at some time). The other portion of the mixture belongs to a male. In the male portion, they were able to exclude John, John Andrew, and Melinda (as matching the DNA profile). Patsy and Burke could not be
excluded as the contributor to the sample. IOW their DNA profiles came close to the one found in the sample, but not enough to say it definitely belonged to either one. But here's the part some overlook: They have already said it belonged to a "
male contributor" -- and that would
exclude Pasty.
Actually, I wouldn't have been surprised to find that Patsy's or Linda H-P's DNA was on it, considering that one of them might have taken it out of the dryer and folded it. Perhaps it's a matter of where the sample was taken. That area (or the other sampled areas) might not have been touched when folding it (if it had been folded). Investigators took the samples where they thought it most likely an assailant might have touched it. The bottom front of her nightgown had JonBenet's and Burke's DNA on it. As they say: Do the math.