Nancy Guthrie Case Update: Sheriff Nanos says ‘thousands and thousands’ of videos, DNA evidence under scrutiny as investigators shift focus to trail of evidence after more than 100 days of intense probe

Nancy Guthrie Case Probe Update: More than 100 days have passed since Nancy Guthrie disappeared from her home in Catalina Foothills in Tucson, Arizona, and authorities are scrambling to identify a suspect as the investigation continues. Nancy Guthrie, the 84-year-old mother of NBC journalist Savannah Guthrie, vanished on January 31, 2026, and was reported missing by her family on February 1, 2026.

Despite hundreds of leads and rewards on offer for any information on her, a team of investigators, led by Pima County Sheriff Chris Nanos and later joined by the FBI, has not been able to achieve any major breakthrough. A few days into the investigation, authorities believed that she was taken away from her home against her will. As the search enters its fourth month since Nancy vanished, investigators probing her kidnapping are now turning to an expanding trail of digital evidence in the case.

Evidence includes “thousands and thousands” of videos, according to Chris Nanos, who told PEOPLE that investigators are focused on analyzing digital evidence, DNA, and tips in hopes of identifying a suspect. "Right now, I think our focus is on the tips, the leads and the evidence we have in front of us," he says. "Digitally, the camera footage as well as biological, the DNA, and those types of things.”


Guthrie, 84, is believed to have been taken from her home against her will, as the FBI previously released photos of a masked assailant approaching her front door in the middle of the night. Following the disappearance of Nancy, the Guthrie family has offered a $1 million reward in hopes of getting information about their mother's whereabouts. More than 100 days after Guthrie vanished, Nanos says investigators remain convinced the case can still be solved. “My team, I’ve said all along, is going to solve this,” the sheriff said. “I fully 100% believe that.”

Amid ongoing search efforts, investigators have now shifted their focus to surveillance footage collected from intersections, neighborhoods, businesses, and home security systems across the area.

"There are thousands and thousands of videos out there from intersections and Ring cameras that we have to catalog,” Nanos further elaborates. “Maybe it’s all the white trucks are over here, all the red sedans are over here; you’ve gotta have it so that when you do find a suspect ... ‘Hey, the suspect is John Doe, we got him,’ now we go and say, ‘Well, what else do we know about John Doe?’”

The process, he says, is methodical: build the digital map first, then work backward once investigators have someone with whom to compare. "‘Oh, he drives a white truck. Were there any white trucks in the area at that time?’” Nanos continues. “‘Oh, John Doe has this cellphone number.’ You back up those pieces of evidence that you gathered early on to try to make your case.”

Investigators also continue to wait on advances in DNA analysis that could prove critical to the case. “I know we have DNA that is unknown, who the contributor or depositor is, but I think they’re getting closer to finding out who that was,” Nanos tells PEOPLE, adding that he has “confidence in our labs."

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"When the labs tell us, 'Hey, there's nothing else we can do,' well, then maybe we've got a problem… we've got a cold case... but right now, the labs aren't telling us that," he says. The sheriff claimed that from multiple laboratories across the country. It includes federal and state partners who are collaborating behind the scenes as technology continues to evolve. “When you have the best minds of the country working on problems, I think they’re gonna solve them,” Nanos stated. “It just takes a while.”