The Pima County Sheriff’s Department said Tuesday that DNA evidence gathered from a pair of gloves found near Nancy Guthrie’s ...

The "signal sniffer" being used in the Nancy Guthrie investigation was mounted on a helicopter on Monday.

Authorities are hoping Nancy Guthrie’s pacemaker may assist them in locating her exact whereabouts as the investigation into ...

On Feb. 3, two days after Nancy Guthrie disappeared, a Pima County helicopter was flying low to the ground, just above Guthrie's home in the Catalina ...

The FBI is deploying Bluetooth "signal sniffer" technology in a bid to detect the pacemaker of Savannah Guthrie's missing ...

The 84-year-old's pacemaker was disconnected from the app on her phone the night she went missing just before 2:30 a.m.

As the search for Savannah Guthrie's mother, Nancy, continues, a cardiologist explains how pacemakers work and if they can be ...

A signal sniffer is the police's latest hope in the Nancy Guthrie case as Today’ show host Savannah Guthrie's mother remains missing.

Authorities searching for Nancy Guthrie, the 84-year-old mother of television host Savannah Guthrie, have introduced advanced ...

The FBI is using "sophisticated" technology to try to locate Nancy Guthrie's pacemaker, as the search for the mother of US TV ...

Authorities are attempting to use the device to detect the signal on Nancy's pacemaker over two weeks after she was reported missing ...