The Pima County Sheriff's Office has reported a slight increase in tips following the release of two purported ransom notes sent to the family of Nancy Guthrie.

New DNA evidence may provide a breakthrough in the Nancy Guthrie kidnapping case, though the Pima County Sheriff's office admits distance from the Guthrie family.

As the investigation into Nancy Guthrie's disappearance continues, the Pima County Sheriff's office has issued a warning to the public against fraudulent QR codes and scammers.

The Pima County Sheriff's office has provided new details regarding a second kidnapping case that occurred near the Guthrie home, with information emerging about Coral Michelle Smith.