Further information on the DNA that supposedly "exonerates" the Ramseys can be found here at post #6:
http://www.forumsforjustice.org/for...uot-Unedited-Notes-From-Ramsey-Case-Documents
A short excerpt is shown below. The entire paper is worth the read. I think the old saying "puffing your wares" could come into play here.
Excerpt from post #6 at above link:
"In the Ramsey investigation, CellMark was able to determine that the primary source of DNA from the fingernail clippings were from a female, and the secondary source was from a male, but that no further conclusions regarding this male could be made.
No DNA identification could be made fro the
underwear stains or hair other than that JonBenet could possibly be the source."