Pima County deputies and the FBI are reviewing a possible new ransom note in Nancy Guthrie's disappearance, while a source says none are treated as credible.

Fox News reported that the Pima County Sheriff's Department and an FBI task force have been made aware of a possible new ransom note tied to the Nancy Guthrie case and are checking its credibility, including related social media comments.

The development lands nearly eight months after the Tucson mother was taken from her home, with no arrest and no named suspect. A law enforcement source close to the case told Fox News there are no new notes being treated as credible.

Nancy Guthrie, mother of NBC host Savannah Guthrie, was last seen shortly before 10 p.m. local time on Jan. 31 after a relative dropped her off at her Catalina Foothills home in Tucson, Arizona. Authorities say she was taken in the early hours of Feb. 1 and has not been seen since.

Two earlier notes demanded crypto and claimed she had died

Within days of the abduction, two ransom notes arrived. The first, sent Feb. 2, said Guthrie was unharmed and demanded $4 million in cryptocurrency for her release. The second, sent Feb. 6, claimed she had died shortly after she was kidnapped.

The New York Post reported that those earlier notes went to local station KOLD-13. The first threatened that the demand would rise to $6 million and that she would be killed if payment missed the deadline. The second claimed she perished from a heart-related issue and had been buried. Rewards totaling more than $1 million remain active. No arrests have been made.

Pima County Sheriff Chris Nanos was blunt in the days after she vanished.

At a news briefing, Nanos said:

"She did not leave on her own. We know that."

A masked man appeared on Guthrie's Ring doorbell camera. A source familiar with the case told Fox News Digital that two photos of that person were taken on different days. Investigators have still not identified a suspect or person of interest.

Deputies say the new tip is under review, not proven

In a Tuesday post on X, the sheriff's department stated the joint task force position in plain terms.

The department wrote:

"The PCSD/FBI Guthrie Task Force was recently made aware of a new possible ransom note related to the Nancy Guthrie investigation,"

It added:

"Investigators are also aware of social media comments regarding the note and are looking further into the information to determine its credibility,"

That careful wording matters. Officials are not presenting the latest note as verified. They are saying they received it, heard the online chatter around it, and are testing whether it holds up. The unnamed law enforcement source's assessment, that no new notes are being treated as credible, lines up with a case still short on hard leads.

Authorities released the first two notes in late July and pointed to a unique writing style, asking anyone who recognized the patterns to contact the Pima County Sheriff's Department and the FBI. That release fit a wider push for public tips in a file that had gone cold on the suspect side, including coverage of how the sheriff put the ransom notes before the public in search of a break.

Tips did move after those notes became public. Families living with an open abduction want every credible lead chased and every fake lead discarded fast. That is the difference between noise and evidence.

Readers following the investigation have also seen how tips rose after the ransom notes went out, and why each new claim has to clear a basic credibility bar before it changes the working theory of the crime.

Months later, the family still waits for a solid lead

Savannah Guthrie has kept her mother in public view, including an Instagram photo posted Aug. 1, 2026. The children have pleaded for help identifying the people who took her. The core facts have not moved: a woman taken from her own home, ransom demands in crypto, a second note claiming she was already dead, and still no one in custody.

Other reported turns in the same unsolved file, including when human remains turned up near the Tucson home without a confirmed link, show how often early headlines fail to close the case. Each item gets checked. Most do not resolve the disappearance.

The same long arc has included moments when Savannah Guthrie spoke of her missing mother as the months stacked up without answers, and a direct video appeal in which she pleaded with her mother's kidnapper well into the ordeal.

For a national audience, the picture is simple and grim. A mother is taken from a residential neighborhood in Tucson. Ransom notes follow within a week. One demands millions in Bitcoin. Another says she has already died. Camera images of a masked figure do not produce a name. Billboards go up in Phoenix. A large reward sits unclaimed. Eight months on, deputies are again sorting a "possible" note and the social media swirl around it.

Investigators have asked the public to call 1-800-CALL-FBI or use the anonymous tip line at 520-88-CRIME. That is the right channel for real information. Online speculation is not a substitute for evidence that can hold up in court.

Open cases like this turn on discipline: chase what is real, drop what is not, and refuse to let rumor set the timeline. A possible note is a lead to test, not a conclusion to sell. Until someone is identified and charged, Nancy Guthrie's family is left with the same hard fact sheriff's deputies stated from the start, she did not walk away, and the people who took her are still free.