CBS News: DNA Rules Out Parents The crime lab has two spots of JonBenet’s blood found on the underwear she was wearing the night of the murder. Mixed in with that blood is the DNA of an unknown person. It has taken years to isolate, but forensic scientists in Colorado now have a complete DNA profile of the killer. They know the killer is a male. What they don’t know is his name.
Augustin and Gray are convinced that the DNA sample belongs to JonBenet’s killer, because of a small amount of matching DNA that also was found under the 6-year-old murder victim’s fingernails.
Thanks much. That's exactly what I wanted to know.