TUCSON, Ariz. (NewsNation) — Investigators are working to process mixed DNA found at Nancy Guthrie’s home that could crack open the case, though complications have arisen because multiple people’s DNA ...

After the Andover cold case ID, "we're going to continue solving cases and giving families answers," said the Texas DNA lab.

Scientists say DNA evidence indicates male Neanderthals and human females interbred more often than opposite Tens of thousands of years ago, as modern humans migrated into northerly territories ...

We're entering day 22 since 84-year-old Nancy Guthrie vanished from her Tucson home and now the investigation is facing a delay. The scientific search for answers has hit a roadblock in a Florida lab.

Fox News correspondent Matt Finn reports on updates in the search for Nancy Guthrie, now entering week three. Former FBI supervisory agent James Gagliano also joins 'America's Newsroom' to weigh in on ...

Although DNA evidence collected in the Nancy Guthrie investigation has yet to yield matches, law enforcement is still bracing for results that could expose cracks in the southern Arizona case ...

DNA from a glove found near the home of Nancy Guthrie did not match any profiles in the FBI’s national DNA database, the Pima County Sheriff’s Department said Tuesday. Sheriff Chris Nanos shared the ...

A glove containing DNA found about two miles from the house of "Today" show host Savannah Guthrie's mother appears to match those worn by a masked person outside her front door in Tucson the night she ...

The hunt for missing 84-year-old Nancy Guthrie has entered a critical new phase but a veteran FBI agent is warning that investigators risk losing precious time as key DNA evidence is being shipped ...

An apparent large-scale operation Friday night tied to the disappearance of 84-year-old Nancy Guthrie marks a "significant escalation" in the Arizona case, with investigators now racing to canvas ...

CLEVELAND, Ohio (WOIO) - Several hundred more cold case homicides could be out there not being investigated, leaving families without answers and criminals walking free. Clearing the backlog of John ...

NEW ORLEANS (WGNO) — The New Orleans Police Department Crime Lab recently made history by becoming fully accredited. WGNO spoke with the lab’s director about what that means and the goals for the ...