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Polygraph tests addressed by Sheriff as Nancy Guthrie remains missing

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February 19, 2026

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Eighteen days have passed since 84-year-old Nancy Guthrie, the mother of NBC "Today" show host Savannah Guthrie, went missing from her Tucson-area residence on February 18th. Investigators maintain the belief that she was taken by force. An official with the Pima County Sheriff's Department has released a statement with the latest updates. It reads, in part: "The DNA that was submitted to CODIS was from the set of gloves found 2 miles away. It did not trigger a match in the national CODIS database and did not match DNA found at the property. The DNA found at the property is being analyzed and further testing needs to be done as part of the investigation.” LiveNOW’s Andy Mac is speaking with Michael Alcazar, a John Jay College of Criminal Justice Professor and former NYPD Detective, after the Pima County Sheriff's Department released an update on the case, saying they are still processing DNA.

"PCSD has received various requests for confirmation of various topics including working with Mexican authorities, utilizing polygraph tests, specific video surveillance requests, financial analysis, etc. PCSD is not confirming or releasing any details regarding those topics at this time."

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Guests & Subjects Covered

Nancy GuthrieNBC TodaySavannah GuthriePima County Sheriff's DepartmentThe DNALiveNOWs Andy MacMichael AlcazarJohn Jay College

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Polygraph tests addressed by Sheriff as Nancy Guthrie remains missing · Livenow From Fox · Sentinel