TUCSON, Ariz. — One criminal expert said even though the investigation into Nancy Guthrie "isn't cold yet," the "best" forensic scientists should go into her house and "scrutinize" everything inside.

Savannah Guthrie has appealed for the public’s help and offered a $1 million reward following the disappearance of her mother ...

The ABC’s multi award winning podcast Expanse returns with its most haunting investigation yet. Expanse: The Nannup Four revisits the baffling disappearance of four people from a remote West ...

Nancy Guthrie's disappearance could have been motivated by a suspect with a personal grievance against her, a 25-year former FBI agent from Colorado said.

Across its history, the United States military has seen more than a handful of men, ships, or aircraft embark on dangerous missions only to disappear seemingly into thin air without leaving a trace.

Doorbell camera footage shows a masked and armed individual approaching the 84-year-old's door on the night she went missing.

Authorities have yet to make significant progress in solving the mysterious disappearance of Nancy Guthrie.

Add Yahoo as a preferred source to see more of our stories on Google. When it comes to unsolved mysteries and events in the world, the most popular one that comes to mind is the D.B. Cooper case. It ...

Sky's crime producer Rebecca Spencer walks the route Jack took that night with his mum, Catherine.