Pima County Sheriff Chris Nanos explained why DNA testing has "prolonged" the investigation.

NASHVILLE, Tenn. (WKRN) — A Gallatin family is one step closer to finding closure after their loved one disappeared 39 years ago, all thanks to the University of North Texas Center for Human ...

The 1991 murder of four teenage girls in a Texas yogurt shop remains unsolved, but there's hope that advancing DNA technology ...

Three months after her abduction, Nancy Guthrie, mother of 'Today' co-anchor Savannah Guthrie, remains missing. Forensic experts believe advanced DNA analysis, though potentially time-consuming, is ...