Pima County deputies are investigating the disappearance of Nancy Guthrie, 84, as a potential crime after she vanished from her Catalina Foothills home late Saturday, the sheriff said Monday. Detectives found “concerning” evidence inside the residence and now believe she did not leave on her own.
Guthrie’s case moved quickly from a welfare check to a criminal inquiry as investigators documented a scene they said was inconsistent with a voluntary departure. Sheriff Chris Nanos told reporters the department is working from a tight timeline built around the last confirmed sighting, a Sunday missing-person report from family and evidence inside the home. The search has drawn national attention because Guthrie is the mother of NBC’s Savannah Guthrie, but officials emphasized their focus is on finding an 84-year-old resident who needs daily medication. Specialized teams with drones, dogs and homicide investigators are assisting as deputies canvass streets, washes and commercial corridors along the foothills north of Tucson.
Relatives last saw Guthrie around 9:30 p.m. Saturday, Jan. 31, when she was dropped off at the home after an evening with family, authorities said. When she did not appear at church, a family member called 911 shortly after noon Sunday. Deputies arrived to find her wallet, phone and vehicle left behind. “We do in fact have a crime scene,” Nanos said, adding that detectives paused the overnight ground search to rest crews and re-stage equipment before daylight canvassing. He described Guthrie as “sharp as a tack” with limited mobility, a combination that, along with other indicators inside the home, led investigators to rule out simple wandering. He declined to specify what was found, citing the active investigation, but said tips from neighbors and businesses could be crucial.
Officials have not named a suspect or identified a vehicle of interest. A statewide SAFE Alert describes Guthrie as 5 feet 4 inches tall and 150 pounds, with brown hair and blue eyes. The alert notes that all of her personal effects remained at the residence, a detail investigators say supports their working theory that someone else was involved. Detectives are pulling surveillance video from doorbell cameras and businesses along North Campbell Avenue and North Skyline Drive and are requesting footage spanning late Saturday to Sunday morning. The department also notified federal partners as part of routine steps for vulnerable missing adults. No arrests had been announced as of Monday evening, and the sheriff said he would not speculate on motive.
The Catalina Foothills neighborhood sits against the Santa Catalina Mountains, where narrow roads, long driveways and natural desert landscaping can block sightlines from the street. Deputies established a perimeter around the home Sunday, taping off a stucco wall and yard as crime-scene vans and a mobile lab cycled through. Neighbors said marked units were present overnight as detectives went house to house seeking camera footage and asking about unfamiliar cars, late-night engine noise or lights on at odd hours. Windy conditions over the weekend may have muffled sounds, several residents said, and the area is typically quiet after dark in winter.
By midmorning Monday, the case had grown beyond a localized search. Homicide detectives joined the effort, while technical teams began mapping interior and exterior spaces for fingerprints, DNA and footwear impressions. Investigators photographed door frames, window latches and bedding and collected electronics for forensic review. The sheriff said lab work will help establish whether Guthrie left the home and, if so, when and how. Deputies also checked nearby trailheads and the Rillito River path, common routes for runners and dog walkers that sit within a short drive. The department asked residents to keep clear of taped-off zones so technicians could work uninterrupted.
Records show Pima County opens dozens of missing-person files each month; most resolve within days without a criminal element. Cases that originate at a residence with signs of disturbance draw a heavier response that can include a mobile crime lab, additional detectives and coordination with state agencies. The foothills corridor features medical offices and restaurants with exterior cameras that often retain footage for several days, giving detectives a broader grid for video pulls. Investigators in past cases along the same ridgeline have struggled with patchy lighting and dense vegetation that create shadows across driveways and cul-de-sacs; deputies Monday revisited houses across from Guthrie’s address to test camera angles and sightlines.
Procedurally, detectives will complete a detailed scene log and submit an affidavit of probable facts if they seek warrants for devices, vehicles or accounts connected to the residence. Next steps include issuing a fuller bulletin with any confirmed clothing description and last-known movements; refining the working timeline with phone records and vehicle license plate reads from nearby corridors; and, if evidence supports it, releasing make, model and color of any vehicle of interest. If a person of interest is identified, the sheriff’s office could schedule a briefing to announce that shift in the investigation. No news conference times were set Monday beyond routine updates.
On the street outside the home, yellow tape rippled in the desert breeze as a patrol SUV idled near a saguaro. A neighbor walking a terrier said deputies were “polite and thorough,” asking to review weekend footage from a Ring camera aimed at the cul-de-sac. Another resident described a quiet Saturday with few visitors. By late afternoon, a pair of detectives paced off distances between driveways and exterior lights, then measured where palo verde and ocotillo cast shadows across the roadway. “We’re all hoping for good news,” a longtime resident said, watching as technicians packed cases into a van.
As of Monday evening, the Pima County Sheriff’s Department said the disappearance remains an active criminal investigation with no arrests and no confirmed sightings beyond Guthrie’s drop-off at home. Detectives planned to continue forensic work at the residence overnight and widen video pulls to additional roadways and shopping centers. Officials said the next public update will come once significant new information is verified.
Author note: Last updated February 2, 2026.