The disappearance of 84-year-old Nancy Guthrie has intensified as investigators scrutinize the night she vanished from her Tucson home. Authorities confirmed that Tommaso Cioni, Guthrie’s son-in-law, voluntarily underwent an extended interview; contrary to social media rumors, he was not arrested and faces no charges. The session is part of efforts to reconstruct the timeline of January 31, 2026.
Nancy was last seen that evening after dinner with her daughter Annie Guthrie and Cioni, who drove her home around 9:45 p.m. and waited until she entered the house. The next morning, she missed church, prompting concern. Deputies found signs of a struggle, a manually disconnected front-door camera, and traces of Nancy’s blood, confirmed by DNA.
Digital evidence showed a sudden pacemaker disruption around 2:00 a.m., suggesting events occurred after Cioni left. The FBI is assisting with forensic analysis, emphasizing urgency. Law enforcement notes that interviewing family members, including Cioni, is standard procedure and not an indication of guilt.
The case has been complicated by fraudulent ransom demands; a man in California was arrested for sending fake crypto ransom messages, though he had no link to Nancy’s disappearance.
Search efforts cover Catalina Foothills’ desert terrain, using K-9 units, drones, and infrared scanning. The FBI has offered a $50,000 reward for information leading to Nancy’s safe return or arrests. Her family stresses she requires daily medication.
Authorities caution the public against speculation fueled by social media, stressing that forensic and digital evidence take time. Physical (blood, forced entry, disconnected camera) and digital (pacemaker disruption) evidence points to a calculated event. Investigators are reconciling these findings with witness statements, including Cioni’s interview.
The search remains active, with the FBI analyzing mobile tower and neighborhood surveillance data. The Guthrie family maintains hope, and the Pima County Sheriff’s Department urges anyone with information from 10:00 p.m. January 31 to 4:00 a.m. February 1 in the Catalina Foothills to come forward.