Sheriff says Nancy Guthrie kidnapping case still active

Investigators remain confident they will solve the high-profile kidnapping of Nancy Guthrie, the 84-year-old mother of "Today" show anchor Savannah Guthrie, despite nearly six months having passed since her disappearance from her Tucson, Arizona, home. Pima County Sheriff Chris Nanos, leading the investigation, emphasized in a July 28 interview that authorities are actively processing a substantial volume of evidence.

"We have so much DNA to sort through. We have so much, in terms of video evidence, to look at," Nanos said. "So I'm still positive that we're going to resolve this case." He explained that forensic labs across the country are collaborating to analyze DNA evidence connected to the case, which the FBI has classified as a kidnapping-for-ransom investigation.

Nancy Guthrie was last seen by her family on January 31 and is believed to have been abducted from her home in the early morning hours of February 1. Authorities have previously released video from a damaged doorbell camera showing an armed, masked individual at her residence around the time of her disappearance.

Sheriff Nanos's public assurance of progress came shortly after Savannah Guthrie released a new video...