Pima County Sheriff Chris Nanos shared an update Thursday on the search for Nancy Guthrie, saying early DNA testing has produced limited results. Speaking at a press conference, Nanos explained that investigators expedited analysis of what they believed were the most promising samples, but findings so far have not provided clear answers.
The sheriff confirmed that blood discovered on a porch during the investigation was identified as belonging to Guthrie. He said this was one of the samples prioritized for rapid testing, though the overall results from the initial DNA work have been minimal.
Nanos added that additional evidence has been submitted to forensic laboratories and that authorities are awaiting further reports. He noted that investigators continue to process multiple items connected to the case as they work to develop new leads.
Guthrie’s disappearance has drawn national attention over the past week. On Wednesday evening, her children released a video appealing for her safe return. Reports indicated the message was recorded with guidance from federal authorities as part of efforts to maintain communication with those potentially involved.
Guthrie, 84, was last seen at her home in a quiet Tucson, Arizona neighborhood on the evening of Saturday, January 31, after being dropped off by family members. The Pima County Sheriff’s Department has said evidence at the residence suggests forced entry, leading investigators to believe she was taken against her will.