Search for Nancy Guthrie continues
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Investigators return to the home of Nancy Guthrie. The 84-year-old has been missing for almost two weeks and police are asking for help.

Nancy Guthrie: Authorities swamped by 18,000 tips since her disappearance

The Pima County Sheriff’s Department has received nearly 18,000 leads in the 11 days since the disappearance of Nancy Guthrie, with 4,000 tips arriving in a single day following the release of suspect surveillance footage.

Nancy Guthrie disappearance: Day 11 latest updates

Feb. 11 marks the eleventh day in the search for Nancy Guthrie, the mother of NBC "Today" show anchor Savannah Guthrie.

Search for Nancy Guthrie continues
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There has been several new developments in the search for Nancy Guthrie in Arizona. Overnight, police briefly detained and then released a man after questioning him. 

Nancy Guthrie: Person of interest released as search for suspect continues

Authorities say a person of interest was released after being detained for questioning in the disappearance of Nancy Guthrie. The individual was detained by deputies during a traffic stop south of Tucson.

Nancy Guthrie: Person detained for questioning
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This case was given new life after the FBI released new images of a potential suspect outside Nancy Guthrie's house. It is still unclear if the person detained has any connection to the new images

Nancy Guthrie case: New photos released from recovered doorbell camera video

The FBI and the Pima County Sheriff's Department have released newly recovered images that show "an armed individual appearing to have tampered with the camera at Nancy Guthrie's front door the morning of her disappearance."

Nancy Guthrie disappearance: Day 10 latest updates

Feb. 10 marks the tenth day in the search for Nancy Guthrie, the mother of NBC "Today" show anchor Savannah Guthrie.

Major break in Nancy Guthrie disappearance
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The FBI releasing new images of a possible suspect in the case, reportedly taken on the morning she went missing. The FBI director said the footage was recovered from residual data on the backend of the home security system.

Search for Nancy Guthrie continues
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"Today" host Savannah Guthrie released a new video as the search for her missing mother continues for a second week. Investigators are still trying to identify a person of interest in the case.

Nancy Guthrie disappearance: Former CIA agent says one mistake could crack case

A "mistake" by abductors may be the key to finding Nancy Guthrie, according to cybersecurity experts who believe human error will eventually bypass the encryption used in ransom notes.

Nancy Guthrie disappearance: Day 9 latest updates

Feb. 9 marks the ninth day in the search for Nancy Guthrie, the mom of NBC "Today" show anchor Savannah Guthrie.

Nancy Guthrie disappearance: Day 6 latest updates

Authorities say Guthrie was taken from her home against her will and is without her necessary medication. She's described as being 5 feet 5 inches tall and 150 pounds, with brown hair and blue eyes.