Mk True Crime
@mktruecrime·75.7K subscribers·1.5K videos
How “Signal Sniffer” Could Find Nancy Guthrie Even If She's Deceased, Private Investigator Weighs In
Posted
February 18, 2026
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4,900
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February 18, 2026
4,900
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9:30Now PlayingMK True Crime hosts Dave Aronberg and Ashleigh Merchant are joined by Steve Fischer, Missing Persons Private Investigator, to discuss the “signal sniffing” technology deployed in the search for Guthrie, the limitations and possibilities of this technology, how Guthrie’s pacemaker could still be detected if she is deceased, the curious search results around the word “ransom” in the Tucson area before Guthrie vanished, and more.
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