The disappearance of 84-year-old Nancy Guthrie has taken a serious turn as investigators continue examining the events surrounding the night she vanished from her Tucson home. Authorities confirmed that her son-in-law, Tommaso Cioni, voluntarily participated in an extended interview with law enforcement. Officials clarified that he was not arrested and faces no charges, describing the interview as part of efforts to establish a clear timeline of January 31, 2026.

Nancy was last seen after dinner with her daughter, Annie Guthrie, and Cioni, who reportedly drove her home around 9:45 p.m. and watched her enter safely. The following morning, concern grew when she missed church and failed to answer calls. Deputies responding to the residence discovered evidence suggesting a possible struggle near the entrance.

A security camera had been disconnected, and traces of blood on the porch were later confirmed to belong to Nancy, shifting the case toward a suspected abduction investigation. Digital evidence added urgency, with investigators noting a sudden disruption in communication from Nancy’s pacemaker shortly after 2:00 a.m. on February 1. The FBI joined local authorities to assist with forensic analysis, while officials emphasized that interviewing family members is routine and not an indication of guilt.

The case was further complicated by fraudulent ransom messages, leading to the arrest of an unrelated suspect accused of exploiting the situation. Search efforts now include K-9 teams, drones, and aerial scans across the Catalina Foothills, while the FBI has announced a $50,000 reward. Authorities continue urging anyone with information to come forward as the investigation remains active.