Tommaso Cioni Interviewed as Investigators Intensify Search for Missing Tucson Woman Nancy Guthrie

The investigation into the disappearance of Nancy Guthrie, 84, is entering a more complex phase as authorities work to rebuild a minute-by-minute timeline of the night she vanished from her home in Tucson’s Catalina Foothills. In a key update, officials confirmed that Tommaso Cioni—Guthrie’s son-in-law—voluntarily participated in an extended law enforcement interview.

Rumors online quickly labeled the meeting an arrest, but the Pima County Sheriff’s Department pushed back on that claim. According to authorities, Cioni was not taken into custody, and no charges have been filed. Investigators described the interview as part of a standard process in high-profile missing person cases—especially when the circumstances suggest possible foul play.

Last Known Movements: Dinner, a Ride Home, and a Quiet Neighborhood

Nancy Guthrie was last seen the evening of Saturday, January 31, 2026, after having dinner with her daughter, Annie Guthrie, and Cioni. Investigators say Cioni drove her back to her home and told deputies he arrived around 9:45 p.m.. He reportedly stated he waited in his vehicle until he saw her enter through the front door.

By Sunday morning, concern turned into panic. Guthrie didn’t show up for church, and family members said they were unable to reach her by phone. When relatives and authorities checked the home, what they found raised immediate red flags.