Law enforcement has also acknowledged recovering evidence tied to the investigation and collecting DNA that does not belong to Guthrie or people known to have close contact with h

Investigators in Arizona want residents near Nancy Guthrie ‘s home to share surveillance camera footage of suspicious cars or people they may have noticed in the month before she disappeared.

A parade of sheriff’s and FBI vehicles, including forensics vehicles, passed through the roadblock that was set up about 2 miles (3.2 kilometers) from the house.