Investigators in Tucson Expand Nancy Guthrie DNA Case With Florida Lab Scientists After Nine Months Without Arrests
TUCSON, AZ — Investigators working the Nancy Guthrie case are still pursuing DNA testing and have now looked beyond Arizona for additional scientific help. Pima County officials say members of the task force recently traveled to Florida to meet with lab scientists about new ways to advance the analysis.
Sheriff Chris Nanos shared the update on social media Friday night, saying the task force continues to work with laboratory partners in hopes of moving the case forward. He did not say whether the Florida discussions produced any new conclusions, and he provided no new information about suspects, evidence, or a timeline.
Task force meets with Florida scientists on possible new testing approaches
Nanos said the meetings in Florida took place earlier this month and centered on several possible approaches to the DNA work in the investigation. He did not identify the laboratories involved or say which investigators made the trip.
The sheriff also did not describe the evidence being tested, leaving unclear what kind of sample material is being examined or how far the testing has progressed. What he did emphasize was that the case remains active and that the investigative team is still looking for ways to improve the odds of getting useful results from the DNA.
That continued effort suggests authorities are treating the scientific side of the investigation as a key part of the case nearly nine months after Guthrie disappeared. The office has not announced any arrests.
What authorities say about Guthrie’s disappearance
Nancy Guthrie, the mother of Today co-anchor Savannah Guthrie, was reported missing on Feb. 1 after failing to appear at church, according to Nanos. Her family last saw her at her Tucson-area home at about 9:45 p.m. on Jan. 31.
As of Oct. 31, she had been last seen alive nine months earlier. Authorities have continued to treat the case as a missing-person investigation, and the sheriff’s office has not publicly announced any arrests tied to her disappearance.
The latest statement does not add new details about what investigators believe happened to Guthrie. Instead, it points to an investigation that is still active but has not yet produced a public breakthrough.
No arrests or suspect details have been released by the sheriff’s office
Beyond the trip to Florida, Nanos offered little about the direction of the case. He did not discuss any suspects, possible motives, or whether investigators have narrowed their focus to any particular person.
He also did not describe whether the task force is working with more than one laboratory or whether the new discussions in Florida were intended to compare methods, review evidence, or explore additional testing options. Those unanswered questions leave the public with only a limited picture of how the investigation is progressing.
For now, the clearest message from the sheriff’s office is that the case remains open and that the DNA work is continuing. Officials are still trying to determine whether further scientific analysis can produce a lead that investigators can act on.
Sheriff asks the public to report even the smallest clue
Nanos used the update to renew a request for help from the public. He said investigators want anyone with information about Guthrie’s disappearance to come forward, even if the detail seems minor or insignificant.
“We want to remind the public that no tip is too small,” Nanos said. “Even the smallest piece of information could be critical to this investigation.”
Authorities say tips can be shared by calling 88-CRIME or the FBI at 1-800-CALL-FBI. The message underscores that investigators are still relying on both scientific testing and community input as they work the case.
DNA remains central as investigators search for a breakthrough
The trip to Florida shows that investigators are still willing to look for outside expertise as they try to move the case forward. After nine months without an arrest, the DNA analysis appears to remain one of the most important avenues available to the task force.
Even so, Nanos did not suggest that a breakthrough is imminent. His comments focused on continued collaboration, not on any confirmed result, and he gave no indication that the investigation has reached a major turning point.
For Guthrie’s family and for investigators, the situation remains unresolved. The case continues to hinge on whether additional lab work can reveal a new lead, and officials say they are still pursuing every practical option available to them.