Nancy Guthrie sheriff says investigators may have more video evidence as they review thousands of clips

TUCSON, Ariz. — The sheriff overseeing the investigation into the suspected abduction of Nancy Guthrie has released two purported notes that may have been sent by one of her kidnappers as he urged anyone with information to come forward and appeared confident that investigators remain on the right track — revealing that investigators are reviewing “tens of thousands” of videos.

Saturday marks six months since the 84-year-old mother of “Today” co-host Savannah Guthrie was taken from her longtime home in the Catalina Foothills on Feb. 1.

While there have been no arrests in the case and no suspects have been publicly identified, Pima County Sheriff Chris Nanos told Fox News Digital he’s optimistic that investigators will crack the case.

“Anything we can grasp onto with DNA is a part of this investigation,” he said.

That includes investigative genetic genealogy research, which is used to generate leads from a family tree.

New evidence could quickly turn the focus of investigators back to people who have been previously cleared, the sheriff said.

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“From what we have in front of us, the evidence, the DNA, the whatever, the videos. Yeah, I think you can eliminate them,” Nanos told Fox News Digital in a sit-down interview Thursday. “And so that elimination happens. But it’s like any [criminal case], because you’re eliminated doesn’t mean you didn’t do it. It doesn’t mean that we can’t get more information.”

New evidence could put anyone back in the investigation’s focus, Nanos said.

“I think I early on said, ‘Look, there is no suspects. The family is not suspects. They’re not,” he told Fox News Digital. “Now, does that mean that ends it forever? No. What happens if next week somebody calls and says, ‘Hey, a family member did this, and here’s how I know it’? You know that always opens a door.”

GOT A TIP?

Investigators believe someone may be able to help identify the masked man seen in Guthrie’s Nest doorbell video.

“We believe, just as the family does, just as Savannah does, somebody knows something,” Nanos said. “We need that person to call us.”

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His office also released a pair of notes that may have been sent by one of Guthrie’s abductors. While authorities haven’t yet confirmed the notes are legitimate — they haven’t ruled them out either. And Guthrie’s daughter, Savannah Guthrie, has said she believes they may be real.

The sheriff’s department said the notes share a “unique linguistic style” and could have been written by the same person. Investigators are asking for the public’s help identifying that person.

“As with the unidentified male depicted in the video, we believe these distinctive linguistic characteristics may be recognizable to someone who knows or has interacted with the notes’ writer,” authorities said. “A friend, family member, coworker, classmate, or acquaintance may recognize these patterns of expression and possess information that could help identify the individual responsible.”

Anyone with information is asked to dial 1-800-CALL-FBI or, to remain anonymous, call 520-88-CRIME.

The sum of all rewards in the case is over $1.2 million — none of which has been claimed.