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

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

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 ...

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

Cybersecurity expert Morgan Wright discusses the timeline of Nancy Guthrie’s disappearance on day five of the search on ‘The ...

Authorities presented a timeline of what occurred the night Nancy Guthrie, mother of Today show host Savannah Guthrie, ...

"Today" show host Savannah Guthrie's mom was still missing, though there have been some updates in the case. Here's the ...

Nancy Guthrie was reported missing on Sunday and investigators believe time is of the essence as the 84-year-old would be in ...

Some of the most recent evidence in the desperate search for Nancy Guthrie, the 84-year-old mother of “Today” host Savannah ...

A law enforcement source told Fox News Digital that the 84-year-old's pacemaker last synced with her Apple devices around 2 a ...

Fox News' John Roberts, who has a pacemaker, detailed it's bluetooth capabilities and how it may relate to the search for ...

Nancy Guthrie, 84, had been missing for four days after authorities believed she was taken from her Arizona home. Her ...