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VIDEO February 19

FBI uses genetic genealogy in Nancy Guthrie probe

Ó£ÌÒÊÓƵ correspondent Matt Finn reports on the FBI's use of genetic genealogy in the Nancy Guthrie probe on 'The Story.'

U.S. February 19

Timeline: NBC host Savannah Guthrie’s mother disappears, family ruled out as suspects

Officials confirm crime in disappearance of Savannah Guthrie's 84-year-old mother Nancy, who went missing Saturday night from her Tucson home, according to authorities.

Nancy Guthrie February 18

Sheriff's office at center of Nancy Guthrie case spotlighted in new 'Desert Law' TV series

The Pima County Sheriff's Office, the department leading the Nancy Guthrie investigation, is featured in a new reality TV series titled "Desert Law."

Nancy Guthrie February 18

Border protocols automatically triggered in search for Nancy Guthrie, retired agent says

Search continues for Nancy Guthrie as Pima County sheriff reports no indication the 84-year-old Arizona woman was taken across U.S.-Mexico border.

VIDEO February 18

Feds turn to genetic genealogy in Nancy Guthrie search

Ó£ÌÒÊÓƵ national correspondent Bryan Llenas reports from Tucson, Ariz. on the latest in the search for Nancy Guthrie and a possible suspect in her disappearance on 'The Faulkner Focus.'

Nancy Guthrie February 17

Gun store owner says FBI asked him to check firearm sales against list of names, pics in Guthrie case

FBI agent visited Arizona gun store with photos and names to check purchases during Nancy Guthrie missing person investigation, local store owner claims.

VIDEO February 17

Dead end feared as sheriff in Guthrie investigation reveals findings in DNA test

Ó£ÌÒÊÓƵ chief correspondent Jonathan Hunt has the latest on the search for Nancy Guthrie as investigators struggle to narrow down leads on 'Special Report.'

VIDEO February 17

Only ‘glimmer of hope’ in Guthrie investigation after no DNA match, argues criminal defense attorney

Ó£ÌÒÊÓƵ contributor Josh Ritter unpacks what is ‘discouraging’ in the Nancy Guthrie investigation after no DNA match was found from a glove on ‘America Reports.’

U.S. February 16

Nancy Guthrie's family members cleared as suspects in disappearance

Pima County Sheriff Chris Nanos clears Nancy Guthrie's family as suspects in her disappearance case, calling them "victims" who have been cooperative.

Nancy Guthrie February 16

Nancy Guthrie case: Ret. FBI agent says bureau preparing for 'parallel realities' while awaiting DNA results

Retired FBI agent reveals three possible outcomes as Nancy Guthrie investigators await crucial DNA results from glove found near scene in ongoing case.

Nancy Guthrie February 16

Nancy Guthrie case: 5 key evidence pieces so far

Nancy Guthrie, 84-year-old mother of "TODAY" host Savannah Guthrie, missing from Tucson home since Feb. 1. FBI offers $100,000 reward for information.