Nancy Guthrie disappearance case puts spotlight on cryptocurrency tracking

The disappearance of Nancy Guthrie has drawn attention to the role of cryptocurrency in kidnappings following reports that her alleged captors are demanding payment in Bitcoin.

Nancy Guthrie: Neighbors within 2-mile radius asked to look at security footage

Neighbors within a two-mile radius of Nancy Guthrie have been asked to submit video footage to investigators amid the ongoing search for the mother of NBC "Today" show host Savannah Guthrie.

Nancy Guthrie disappearance: Day 12 latest updates

Feb. 12 marks the twelfth day in the search for Nancy Guthrie, the mother of NBC "Today" show anchor Savannah Guthrie.

Nancy Guthrie: Residents asked to check security video
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Thursday marks Day 12 in the search for Nancy Guthrie, the mother of "Today" show host Savannah Guthrie. Nancy's neighbors are asked to submit any surveillance camera footage that may help investigators with the case. FOX 10's Nicole Krasean has more.

Tent blocking front entrance of Nancy Guthrie's home
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There's new developments in the Nancy Guthrie disappearance case. A large canopy is now blocking the front door of Guthrie's southern Arizona home. FOX 10's Danielle Miller has the latest.

Nancy Guthrie latest: Investigators searching near her home
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Investigators continue to comb through the desert near Nancy Guthrie's Tucson-area home as the search for the mother of "Today" show host Savannah Guthrie enters its 12th day. FOX 10's Danielle Miller reports.

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: 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.

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. 

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.