the trail kept getting colder. sherry's parents offered to have the saliva sample of the bite mark tested for dna, they even would pay for it and the l.a.p.d. declined. >> they said, we don't have a suspect, if we center a suspect, and we have their dna, then we have something to match. >> and the case sat for another decade. then the newly formed cold case unit was conducted dna tests on unsolved cases and one of them was the murder of sherry rasmussen, it took two months to find the saliva sample, buried in a refrigeration unit, the vial was poking out and the label torn but the saliva was still inside and the dna was enough to blow the case wide open. >> in the lab report, it indicated that the suspect, that