The disappearance of Nancy Guthrie has become entangled in a federal probe into the conduct of Pima County Sheriff Chris Nanos, raising fresh questions about the handling of the missing Guthrie investigation.
The FBI case centres on whether Nanos resisted expanded federal involvement at a critical early stage and whether that affected the pace and transparency of the Guthrie investigation. The controversy has intensified public and political scrutiny of his office's role in the ongoing search and the broader FBI case examining possible constitutional violations.
