A device that can pick up certain electronic signals is being used in the search for Nancy Guthrie, as it may detect ...

Unconfirmed media reports say Nancy Guthrie's pacemaker stopped syncing with her Apple devices. Here's what that means.

The device is attached to low-flying aircraft to identify Bluetooth signals, like those emitted from pacemakers.

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 used to track a missing person's location.

Information about Nancy Guthrie's pacemaker helped authorities piece together a new timeline in her kidnapping. Can the devices track you?

Nancy Guthrie’s 2 a.m. pacemaker spike on the day she vanished could mean that the elderly woman was involved in a heart rate ...

Pima County Sheriff Chris Nanos provided the public with updates on Tuesday, February 3, regarding the disappearance of Savannah Guthrie’s mom, Nancy Guthrie, including the report that her pacemaker ...

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