New Nancy Guthrie evidence theory revealed

More than 100 days after Nancy Guthrie vanished from her Tucson home, retired FBI agent Steve Moore says the single strand of hair tied to the case likely represents only a fraction of what investigators recovered—and he also questions early confusion during t

More than 100 days after Nancy Guthrie disappeared from her home in Tucson, Arizona, a retired FBI agent is putting fresh pressure on how the investigation started—and what investigators may have collected before the public ever saw a single detail.

Steve Moore. a former FBI agent. says the one strand of hair publicly tied to the case is likely only a small portion of the forensic material investigators recovered inside Nancy’s home. Speaking to NewsNation correspondent Brian Entin. Moore argued that finding just one hair doesn’t fit how evidence typically shows up at a crime scene.

“Imagine the odds of a person coming into a crime scene, losing only one hair and you find it,” Moore said. “That’s not likely. If you find one hair, there are probably 10 others that you’ve missed.”

Moore also said trained forensic investigators routinely collect evidence that may never register to the naked eye—such as fingerprints. skin cells. and other trace material. His concern. as laid out in his comments. is that investigators likely recovered additional evidence that hasn’t been publicly disclosed.

That criticism extends beyond what may have been collected and into how the early response unfolded.

Sergeant Aaron Cross previously described conflicting information coming from family members and communication breakdowns among deputies and federal authorities during the first hours of the case. Moore seized on the idea of confusion at the scene, saying it suggests no one was effectively coordinating.

“You’re not allowed to have confusion at a crime scene,” Moore said. “If there’s confusion, it means nobody’s in charge who knows what they’re doing.”

Moore compared that kind of disorder to the controlled environment of an emergency room—where staff may move quickly, but remain organized.

“That’s a sign of inadequate preparation,” he added.

Behind the forensic debate is a mounting public fight over leadership. The case remains unsolved more than 100 days after Nancy Guthrie vanished, and questions about authority inside the sheriff’s department have intensified as political pressure and recall efforts mount against Sheriff Chris Nanos.

Moore said removing a sheriff during an active investigation could temporarily disrupt progress, while also noting that leadership changes could ultimately help if management problems contributed to early mistakes.

He also pointed to the potential impact of timing—especially if more physical evidence emerges later. Moore said the discovery of Nancy’s remains, even months after her disappearance, could dramatically reshape the investigation. According to Moore. the location of a body could provide investigators with “a treasure trove” of evidence. including tire tracks. environmental clues. and other forensic details that might help reconstruct what happened.

For now, the case remains under investigation, and authorities have released few public details about potential evidence or suspects.

Nancy Guthrie Savannah Guthrie Tucson disappearance Pima County Sheriff’s Department Chris Nanos Steve Moore forensic evidence hair evidence recall efforts unsolved case