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

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DNA science has helped solve criminal cases for decades. But increasingly, investigative genetic genealogy — which was first used for cold cases — is helping to solve active cases as well.

Law enforcement have yet to name a suspect in connection to Nancy Guthrie's disappearance, but they are looking for a man seen on surveillance camera outside her home wearing a mask and gloves and ...

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You've probably heard of the dark web, but what's actually on it? These 5 tips can help you explore the dark web using Tails, Tor, and a VPN, assuming you actually want to go see.

The disappearance of Nancy Guthrie, 84, the mother of the “Today” show anchor Savannah Guthrie, has gripped the nation, with unverified reports of ransom notes, chilling doorbell camera footage and ...

The family has been ruled out as suspects in her disappearance, and now the feds have deployed a so-called signal sniffer aimed at locating her pacemaker.

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

Business loans provide short- and long-term financing for companies Matt Webber is an experienced personal finance writer, researcher, and editor. He has published widely on personal finance, ...

It turns out that the solution was scrawled on scraps of paper accidentally tucked away by Sanborn at the Archives of American Art, where two journalists stumbled across them in September. The ...