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TUCSON, Ariz. (KOLD/Gray News) - As the search for 84-year-old Nancy Guthrie enters its third week, the FBI is employing new technology that could help locate her using signals from her pacemaker. Law ...

(NewsNation) — Investigators are using a signal sniffer device in the search for Nancy Guthrie, in hopes of detecting a signal from her pacemaker. Guthrie’s pacemaker disconnected from her phone in ...

Investigators in Nancy Guthrie's disappearance are using a device called a "signal sniffer" to try to detect transmissions from her pacemaker. David Kennedy, former NSA hacker and inventor of the ...

Amid the search for Nancy Guthrie, the mother of ‘Today’ show host Savannah Guthrie, NewsNation’s Brian Entin has reported that investigators are using a “signal sniffer” in an attempt to detect Nancy ...

US authorities searching for Nancy Guthrie, the 84-year-old mother of NBC Today show co-host Savannah Guthrie, have turned to an unusual piece of technology in hopes of locating her – a ‘signal ...

The FBI is using advanced bluetooth technology to try to find Nancy Guthrie's pacemaker. Pacemakers emit signals that could provide clues to the whereabouts of the missing 84-year-old. Flying ...