Former Pinal County Sheriff Mark Lamb and attorney Joshua Ritter analyze the search for Nancy Guthrie, the use of high-tech ...

Cops are flying over the Tucson desert with a high-tech Bluetooth signal detector in an attempt to locate a signal from Nancy Guthrie’s pacemaker.

Fox News correspondent Alicia Acuna joins 'Fox News Sunday' to discuss new details in the search for Nancy Guthrie as the search enters week three.

But the Johnson County Coroner’s Office and local funeral homes are teaming up to put those devices to use for people in need ...