Nancy Guthrie Case: Forensic Issue Revealed by Sheriff Nanos

Investigators in the Nancy Guthrie missing persons case are not pursuing any new leads, as stated by Pima County Sheriff Chris Nanos, amidst challenges with mixed DNA found at her home. Local businesses, however, reported being shown a list of names by the FBI. The sheriff mentioned that the mixed DNA complicates analysis, but other investigative avenues are still being explored. Guthrie, 84, was last seen after being dropped off at her Tucson home on January 31, 2026, and Nanos remains committed to finding her.