Three people were detained during a SWAT operation Friday night in the Shadow Hills neighborhood as part of the investigation into the disappearance of Nancy Guthrie. A Shadow Hills resident told News 4 Tucson she witnessed three people being detained during the operation.
According to an unconfirmed report from a neighbor, another individual shot himself in the head, multiple reports have noted.
The SWAT activity followed a Feb. 13 operation at a home in the same neighborhood. Sources close to the investigation said a man and a woman were detained at the house, and a third person was detained during a traffic stop.
The Pima County Sheriff’s Department confirmed the SWAT operation was connected to the Nancy Guthrie investigation.
A PCSD vehicle was seen blocking the roadway at East Placita De Graciela and East Camino de Michael. Details remain limited, and officials have said a statement is expected.
The FBI’s Operational Technology Division recently released a description of the person seen on doorbell camera footage outside Guthrie’s home.
The suspect is described as being between 5 feet 9 inches and 5 feet 10 inches tall with an average build. Investigators said the individual was carrying a 25-liter Ozark Trail Hiker Pack backpack and was wearing a ski mask and gloves in black-and-white surveillance footage.
Pima County Sheriff Chris Nanos said investigators recovered DNA from the scene that does not belong to the missing 84-year-old Tucson woman.
“What I believe is what I know is we found DNA,” Nanos told Fox News correspondent Jonathan Hunt during a sit-down interview.
When pressed on whether the genetic material matched Guthrie, Nanos responded, “That was not Nancy Guthrie’s DNA.”
Nanos said authorities are working with a contracted forensic laboratory in Florida to analyze the biological evidence.
He said investigators are collecting elimination markers from individuals connected to the home to rule out known sources and narrow potential matches.
The sheriff addressed criticism about how evidence has been handled and said his department is working closely with the FBI.
He said sending the material to the Florida lab follows established procedures.
Nanos clarified that a glove considered potential evidence was not recovered at Guthrie’s home.
He said the glove was located roughly two miles away during expanded search efforts.
Despite the developments, Nanos said the operation remains focused on finding Guthrie alive.
“They all have hope and belief that this is a rescue mission,” he said.
Search efforts have included ground teams, aerial support, and coordination with federal partners.
Investigators are mapping Guthrie’s last known movements and reviewing footage from nearby residential security systems.
Officials said forensic testing is ongoing.
Evidence collected at the home continues to be analyzed, though early results have provided limited clarity.
Family members have made public appeals for information.
Authorities are asking anyone who may have seen unusual vehicle activity, unfamiliar individuals or suspicious behavior in the area in the days leading up to Feb. 1 to contact law enforcement.
Officials said the investigation remains active and wide-ranging.