Nancy Guthrie Update: New Principle Emerges as Case Shifts

On, Sunday, March 1, the search for Nancy Guthrie, the mom of NBC "Today" show host Savannah Guthrie, officially entered its second month, and now, an expert is revealing a new principle in the case.

Nancy Guthrie went missing from her Tucson, Arizona, home on Feb. 1. One of the questions that has arisen from the investigation is what the suspect had in his pocket when he was spotted at her property.

Now, Tracy Walder, a former FBI agent and CIA officer, is giving her thoughts on what looks to be an antenna, or something similar, in the man's pocket.

Nancy Guthrie Update Today: Investigative Expert Shares Update From the Scene

In an interview on Saturday, February 28, on an episode of the Brian Entin Investigates podcast, Walder discusses what's the suspect's pocket, which people have though was a walkie talkie or a signal jammer.

While Walder confirms that she "can't confirm what's in his pocket," she has an idea. She's heavily leaning to the walkie talkie theory.

"The walkie talkie makes sense in the fact that... I feel a getaway vehicle is gonna be critical in this case if there's someone else that helped, and so that would be a way — obviously you wouldn’t want to use a cell phone — that would be a way in a short range to communicate with someone to bring a car to a certain location. That’s why I can get on board with the walkie talkie theory," she stated on the show.

While she's leaving towards the walkie talkie idea, Walder also says you can't rule out the idea of it being a signal jammer.

"In terms of the signal jammer, that makes sense as well, but the home, in and of itself," she said. "I'm not seeing that he took any devices with him. So, I can see the possibility of both. I don't think we can discredit either."

Digital Forensics May Hold the Key in the Nancy Guthrie Case, Expert Says

Heather Barnhart, a digital forensics expert with the SANS Institute and Cellebrite, says digital forensics may help reveal the suspect.

"People forget how much their data spreads across devices. So the same thing that makes investigations hard make it hard for criminals to clean up," said Barnhart, who was one of the people who investigated the University of Idaho murders.

"Your phone is the silent witness to your life. It knows everything you do," Barnhart stated. "So forming those patterns and then looking for any anomaly of someone trying to hide their digital footprint is key here."

Nancy Guthrie Case Shifts as Fewer Reporters Are on the Scene

On Sunday, March 1, Fox News reporter Michael Ruiz shared an update from the scene. "A gun-toting, masked man believed to be involved in her abduction remains unidentified and at large — and he may have had accomplices," he stated in a post on X.

He added that the media presence at the scene has gone down and has even been "greatly diminished," but that some remain who are committed to bringing Nancy Guthrie home.