Overview
- Nancy Guthrie, 84, was last seen at her Catalina Foothills home on Jan. 31–Feb. 1 and the Pima County Sheriff’s Department and the FBI continue an active joint investigation.
- Investigators have recovered physical and digital evidence from the home, including blood on the porch, a strand of hair, surveillance footage of a masked person at the doorbell and pacemaker data that stopped abruptly.
- A blockchain security firm’s public note, amplified by a retired FBI agent in mid‑June, suggested the case could be a ‘wrench attack by proxy’ tied to a reported $6 million bitcoin demand but law enforcement has not verified that claim.
- Buscando Corazones Nogales, a Mexican volunteer search group, followed an anonymous tip to sites near Nogales and found multiple unmarked graves but no confirmed link to Guthrie, and Pima County says Mexican authorities have not formally shared the tip with them.
- No suspect has been publicly named, the family offers a $1 million reward and the FBI has posted $100,000, investigators urge the public to rely on verified channels as forensic lab work and tip follow‑ups continue.