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.

Body language expert says 'sociopath' likely was familiar with property

Newly released security footage showing a masked, armed intruder at Nancy Guthrie’s home is being analyzed by a body language expert who believes the subject is familiar with the property.

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: Retired cold case sergeant on photos of masked person
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The release of surveillance images was a major break in the search for Nancy Guthrie. Troy Hillman, retired cold case sergeant and the author of "Chasing Down the Zombie Hunter," joined AZAM to discuss the latest on the case.

Nancy Guthrie: TMZ says it received new letter in kidnapping
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TMZ is reporting it received a new letter amid the search for Nancy Guthrie. TMZ says the sender of the letter claimed they knew the name of the alleged kidnapper and that they reached out to Guthrie's family. The letter also demands a single bitcoin be sent to an active bitcoin address. A single bitcoin is worth about $66,000.

Texas DPS warns about fake El Paso road closure memo

The Texas Department of Public Safety issued an urgent warning Wednesday regarding a fraudulent memo circulating online that falsely claims major highways in the El Paso area will be closed for 10 days.

Mark Kelly cleared in DOJ investigation of military video
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A grand jury ruled it will not indict Democratic lawmakers, including Arizona Senator Mark Kelly, in connection with an illegal orders military video.

Man detained, released in search for Nancy Guthrie
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The investigation into Nancy Guthrie's disappearance continues to ramp up in Tucson as a man who was detained for questioning on Tuesday night has been released. FOX 10's Irene Snyder and Danielle Miller have the latest.

Nancy Guthrie: Don't call 911 unless you have tips, sheriff says
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The Pima County Sheriff's Department is urging the public to not call 911 about the Nancy Guthrie case unless they have actual tips regarding her disappearance.

Nancy Guthrie: Traffic stop leads to person being detained
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Authorities detained an unidentified person of interest Tuesday night in the case of missing 84-year-old Nancy Guthrie, just hours after SWAT vehicles were seen leaving the Pima County Sheriff’s Department. FOX 10's Taylor Wirtz has the details.

Nancy Guthrie: Search warrant underway in southern Arizona
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The FBI and Pima County Sheriff's Department are conducting a search warrant related to the Nancy Guthrie case in Rio Rico, located half an hour away from the U.S.-Mexico border.

Nancy Guthrie: Person of interest detained in the case
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A person of interest in the disappearance of 84-year-old Nancy Guthrie was detained Tuesday night, Fox News Digital confirmed. Guthrie was last seen Jan. 31 at her home in the Catalina Foothills near Tucson.

Arizona AG demands answers on proposed Surprise ICE facility
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Arizona’s attorney general is challenging a federal plan to transform a massive Surprise warehouse into an immigration detention center.

Nancy Guthrie: Annie Guthrie's neighbor has home inspected
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A Tucson area neighbor of Nancy Guthrie's daughter, Annie, has his home inspected on Tuesday, Feb. 10. Joe Contreras says investigators searched his surveillance videos in hopes to find clues in the Jan. 31 disappearance of the 84-year-old.

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: Images show person at Guthrie home
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As crews continue to search for Nancy Guthrie, we are getting a look at newly-recovered surveillance images from the night Nancy went missing. Meanwhile, the FBI was back at the Guthrie home on Feb. 10. FOX 10's Steve Nielsen reports.