Investigators searching for clues in the Arizona kidnapping of Nancy Guthrie are turning to genetic genealogy, a forensic technology that has already helped to crack several notorious cold cases in ...

Nancy Guthrie, 84, was reported missing from her home in the Tucson, Arizona, area on Feb. 1. She was last seen the night before, when family dropped her off at home.

You follow the trail where investigators are working directly with Walmart stores across Arizona to track purchases and surveillance tied to the Nancy Guthrie disappearance. That coordination — ...

Forensic genealogy has helped investigators track down serial killers, now police are using it to try to identify Nancy Guthrie's kidnapper. The post Forensic genealogy helped catch killers. Can it ...

Founded by Dr. Todd Lewis, the organization reflects a process-driven approach shaped by both industry experience and ...

Investigators are examining whether Guthrie could have been taken across the Mexican border, though officials say they are ...

DNA science has helped solve criminal cases for decades. But increasingly, investigative genetic genealogy — which was first ...

DNA science has helped solve criminal cases for decades. But increasingly, investigative genetic genealogy — which was first ...

You follow the thread of a case that sat cold for nearly three decades and feel the moment the silence breaks. Investigators used updated DNA methods and persistent detective work to connect evidence ...

DNA testing is underway on a glove found during the search for 84-year-old Nancy Guthrie to identify a potential suspect.

Kendra Pierre-Louis: For Scientific American’s Science Quickly, I’m Kendra Pierre-Louis, in for Rachel Feltman. It’s been more than 500 years since Leonardo da Vinci died. Yet, in those intervening ...