FBI Pursues Advanced DNA Analysis in Ongoing Investigation into Disappearance of Savannah Guthrie’s Mother
Tucson, Ariz. — More than four months after 84-year-old Nancy Guthrie was abducted from her home in the Catalina Foothills area of Tucson, federal investigators continue to examine DNA evidence recovered from the residence, including a hair sample submitted to the FBI laboratory for sophisticated forensic testing, according to multiple sources familiar with the case.
The genetic material, initially processed by a private laboratory in Florida working with the Pima County Sheriff’s Department, was later transferred to the FBI’s state-of-the-art facility in Quantico, Virginia. Authorities hope advanced techniques will help untangle what experts describe as a complex mixed sample potentially containing DNA from three or more individuals, including at least one male contributor.
CeCe Moore, a prominent investigative genetic genealogist with Parabon NanoLabs, previously told Fox News that a properly cleaned hair sample is unlikely to complicate a mixed profile. “Not after it is cleaned for contamination,” Moore said. “They have that process in good shape, but it can take some time.” She suggested the sample could represent “Nancy plus two or more unknowns.”
Pima County Sheriff’s Department officials have confirmed their close partnership with the FBI since the early days of the investigation. In a statement posted on X, the department noted: “PCSD has worked with the FBI since the beginning of the Guthrie investigation. This is not new information. The private lab we utilize in Florida continues to share information with the FBI lab & other partner labs across the country. DNA analysis remains ongoing.”
Sheriff Chris Nanos has repeatedly stated that while DNA from the scene has not yet identified a suspect, testing through the FBI’s Combined DNA Index System (CODIS) and other databases has ruled out certain connections. An earlier sample submitted for CODIS comparison produced no hits, and a separate mixed partial profile was deemed insufficient for database entry. Forensic experts emphasize the challenges of deconvoluting complex mixtures, which can require extensive time and resources.
Key physical evidence includes blood on the front porch confirmed to belong to Nancy Guthrie. Investigators also recovered a glove approximately two miles from the home that resembled one worn by a masked individual captured on the victim’s Nest doorbell camera. That glove, however, yielded no usable match to samples from inside the residence or to national databases.
Nancy Guthrie, the mother of NBC’s Today co-host Savannah Guthrie, was last seen around 9:45 p.m. on January 31, 2026, after a family member dropped her off at her residence. She was reported missing the following day, February 1. Authorities believe she was taken against her will in what they have described as a kidnapping. Despite extensive searches, door-to-door canvassing, and analysis of digital evidence, her whereabouts remain unknown.
The case has captivated national attention, in part due to Savannah Guthrie’s high-profile role. In an emotional interview on the Today show roughly one month after the disappearance, Savannah described her family’s profound suffering. “Someone needs to do the right thing. We are in agony, we are in agony,” she said tearfully to co-host Hoda Kotb. “And to think of what she went through. I wake up every night in the middle of the night… And in the darkness, I imagine her terror.” Savannah has since returned to her full-time hosting duties while continuing to appeal for information.
A substantial reward totaling more than $1.2 million — including $1 million offered by the Guthrie family — remains in place for information leading to Nancy’s safe recovery or the arrest and conviction of those responsible. The family and authorities urge anyone with tips to contact the FBI at 1-800-CALL-FBI.
As the investigation enters its fifth month, officials continue to process scientific evidence and digital media. Sheriff Nanos and federal partners have expressed cautious optimism that ongoing DNA work, combined with other leads, could eventually yield a breakthrough. No arrests have been made, and the case remains active with no additional suspects publicly identified.
The prolonged uncertainty has weighed heavily on the Guthrie family and the Tucson community. Investigators continue to ask the public to review any information from the night of January 31, emphasizing that even seemingly minor details could prove vital in bringing Nancy Guthrie home.
