The disappearance of Today show co-host Savannah Guthrie’s mother Nancy Guthrie remains unsolved even after investigators retrieved video footage of a possible suspect in front of her doors on the ...

How did investigators do it? Persistence and taking advantage of forensic advances.

Add Yahoo as a preferred source to see more of our stories on Google. A key piece of evidence in the Nancy Guthrie case—a glove found two miles from her Tucson area—is being sent back to Arizona for ...

Investigators in the Nancy Guthrie case have turned to genetic genealogy as they try to make the most of potential DNA ...

The FBI is planning on using genetic genealogy in the Nancy Guthrie investigation. On Tuesday, Feb. 17, the Pima County Sheriff’s Department confirmed that a glove found two miles from Nancy's Tucson ...

Add Yahoo as a preferred source to see more of our stories on Google. In an aerial view, Pima County sheriff's officers gather on Nancy Guthrie's property on February 17 in Tucson, Arizona. - Brandon ...

A member of the FBI's Evidence Response Ream searches an area around Nancy Guthrie's residence in Tucson, Ariz., on Feb. 11. Police say that DNA samples have been recovered in and around Guthrie's ...

Investigators in Arizona are hoping that DNA found in and around Nancy Guthrie's house in Tucson could lead them to a suspect — and the missing woman. Guthrie, the 84-year-old mother of Today show ...

Officials investigating the disappearance of Nancy Guthrie have recovered DNA from a glove found near her house. If they don't get an exact match, they could turn to genealogy websites for clues. The ...

TUCSON, Ariz. — A Q-tip, a tissue and a pizza crust. To investigators, this seemingly innocuous trash was DNA-laden treasure, helping crack the cases of the University of Idaho murders, the Golden ...

NORFOLK, Va. (WVEC) -- Police are using new technology to better collect DNA and use profiles differently, finding that the advances have the ability to crack cases once considered cold. The advances ...