Forensic expert Robert Fried told NewsNation that processing the digital and scientific evidence in the disappearance of 84-year-old Nancy Guthrie, mother of Today Show co-host Savannah Guthrie, will take a substantial amount of time.

TUCSON, Ariz. — FBI video forensics experts were seen bringing specialized equipment into the area of Nancy Guthrie’s home, where blood was previously discovered, as the search for the missing 84-year-old Arizona woman enters its 12th day. Photos ...

We saw that they were there for *** while. They were inside the house. They were walking around the perimeter. *** flurry of activity Wednesday at the home of Today Show host Savannah Guthrie's mother Nancy, well into the 4th week of the search for the ...

Forensic analysis in Nancy Guthrie's case reveals a violent struggle, with blood patterns indicating severe trauma. A ransom note and social media blunder add complexity to the investigation.

The FBI has received DNA evidence recovered from the Tucson, Arizona, home of Nancy Guthrie, including test results from a hair sample, sources familiar with the investigation told Fox News Digital. A source with knowledge of the investigation confirmed ...