Nancy Guthrie: Glove found in desert search as authorities sift through thousands of tips
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The Pima County Sheriff’s Department has received nearly 18,000 tips since 84-year-old Nancy Guthrie was reported missing over 10 days ago, with more than 4,000 calls arriving within 24 hours following the release of home 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.

Nancy Guthrie: FBI searching area roadways
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The FBI says they are extensively searching multiple roadways along the Catalina Foothills area, as the disappearance of Nancy Guthrie entered its 11th day. FOX 10's Ashlie Rodriguez has more.

Delivery driver says he was detained, doesn't know Nancy Guthrie
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The man detained and later released by authorities in connection with the Nancy Guthrie case has spoken out. FOX 10's Steve Nielsen hears why he believes he was targeted.

Body language expert analyzes surveillance video at Nancy Guthrie's home
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A body language expert says the doorbell video released in the Nancy Guthrie investigation could help crack the case. FOX 10's Brian Webb learns what she says after studying the suspect in it. 

Nancy Guthrie: TMZ receives new note
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TMZ reports that they have received another letter by someone claiming they know who the suspect in the disappearance of Nancy Guthrie is.

Private Investigator weighs in on recent searches of Nancy, Annie Guthrie's homes
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Amid the extensive searches of Nancy and Annie Guthrie's home, and along several roadways in the Catalina Foothills area of Tucson, a private investigators is weighing in on what these latest searches might mean for the investigation. 

Nancy Guthrie: Man detained, released by law enforcement speaks out

Carlos Palazuelos, the man detained on Feb. 10 in connection with the disappearance of 84-year-old Nancy Guthrie, claims law enforcement targeted him because his eyes allegedly matched those of a masked suspect seen on surveillance footage.

Nancy 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.

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: 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.

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.