Pima County Sheriff Continues Nancy Guthrie Search With DNA Testing

More than 100 days after 84-year-old Nancy Guthrie disappeared from her Tucson, Arizona, home, the investigation remains active but has yet to produce an arrest or publicly identify a suspect. Authorities believe Guthrie was taken against her will from her residence in the Catalina Foothills area late on January 31 or in the early hours of February 1.

Pima County Sheriff Chris Nanos, who is leading the investigation, stated that progress continues through a methodical review of digital evidence, forensic analysis, and public tips. A central focus is advanced DNA testing on blood evidence recovered from outside and inside the home, which has yielded an unknown genetic profile. Multiple state and federal laboratories are working to identify the contributor through database comparisons and genetic genealogy. Sheriff Nanos emphasized the case is not considered cold, stating that as long as laboratories continue producing new leads, the investigation remains active.

The investigation involves cataloging thousands of hours of surveillance footage from traffic cameras, businesses, and residential doorbell systems across the area. Authorities are examining a clip, released early in the...