Pima County Sheriff Chris Nanos revealed that there are problems with the DNA evidence collected from Nancy Guthrie’s house that could take up to a year for the private Florida lab he’s using to resolve.

Greg Hampikian was key in proving Amanda Knox’s innocence through DNA. He explains the challenges investigators are likely facing in trying to trace back DNA found at the scene of Nancy Guthrie’s disappearance to a suspect.

The backpack, the blood splatters and the masked man at the front door. See pieces of the Nancy Guthrie investigation.

Nancy Guthrie‘s neighbor recently opened up about seeing the kidnapping suspect near her home. According to a report, the next-door neighbor caught sight of a suspicious man wandering the

Savannah Guthrie's mom, Nancy Guthrie, has been missing for nearly a month, and investigations are continuing in Tucson, Arizona.