“This is very concerning to us. We don’t typically get the sheriff out at a scene like this. But it’s very concerning what we’re learning from the house,” Nanos said. “And so we’ll just continue. The detective’s homicide team is out right now looking at the scene as well.”

Nanos confirmed the missing woman is Savannah Guthrie’s mother. He said she is of “good sound mind” but suffers from physical ailments that limit her mobility.
Investigators are not ruling out foul play and have brought in the department’s criminal investigation unit due to the seriousness of the circumstances, the sheriff said.
Authorities are using helicopters, infrared, and drones in the search. Assistance has also been requested from Customs and Border Protection, NBC reporter Tom Winter said.

Volunteers are aiding search-and-rescue efforts, while detectives are asking residents in the area to review any home surveillance or doorbell camera footage that could provide clues.
Savannah Guthrie released a statement on NBC’s “Today” on Monday morning as the search continued.
“On behalf of our family, I want to thank everyone for the thoughts, prayers and messages of support. Right now, our focus remains on the safe return of our dear mom,” the statement said.
“We thank law enforcement for their hard work on this case and encourage anyone with information to contact the Pima County Sheriff’s department at: 520-351-4900,” it continued.