Trump Blasts Leak of Pacemaker Tracking Tactic ...

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

Authorities insist the case is still very much active, with the FBI receiving more than 19,000 tips. But the case is ...

As the search for Nancy Guthrie continues, investigators are turning to a small device they hope could lead to a breakthrough: the 84-year-old’s pacemaker.

The sheriff’s office said they ruled out Guthrie’s three adult children and their spouses as suspects.

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

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

An expert tells PEOPLE why pacemakers have Bluetooth technology, and how it can help locate Savannah Guthrie’s missing mother ...

A device that can pick up certain electronic signals is being used in the search for Nancy Guthrie, as it may detect emissions from her pacemaker, sources told CBS News.