Alex Sundby is a senior editor at CBSNews.com. In addition to editing content, Alex also covers breaking news, writing about crime and severe weather as well as everything from multistate lottery ...

Law enforcement have yet to name a suspect in connection to Nancy Guthrie's disappearance, but they are looking for a man ...

The 84-year-old disappearance of Nancy Guthrie from her house in Tucson has reached a critical phase, and investigators are intensifying their research, leveraging advanced forensic devices to ...

DNA science has helped solve criminal cases for decades. But increasingly, investigative genetic genealogy — which was first used for cold cases — is helping to solve active cases as well.

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 ...