Overview
- Nancy Guthrie, 84, vanished from her Catalina Foothills home on Jan. 31 and was reported missing the next day after drops of her blood were found on the front porch.
- Local and federal teams, including the FBI, continue forensic testing of mixed genetic material, video and electronic data as investigators search for leads and have not announced any arrests.
- Pima County Sheriff Chris Nanos has said investigators understand the motive but will not disclose details, leaving investigators to pursue undisclosed lines of inquiry.
- Former FBI agent Jennifer Coffindaffer has publicly suggested the case could fit a violent cryptocurrency 'wrench attack' pattern and noted a reportedly related Scottsdale home invasion the day before Guthrie disappeared, but law enforcement has not confirmed any crypto link.
- Crypto security firms report a sharp rise in wrench attacks in early 2026, with CertiK citing 34 confirmed incidents and about $101 million in estimated losses, a trend that raises concerns for people with visible or public crypto ties and is likely to shape what investigators and the public watch for next.