Crime expert weighs in on FBI high-tech move to crack Nancy Guthrie case

The authorities are under the spotlight after no suspect has so far been produced in Nancy Guthrie's presumed kidnapping.

Now, as pressure is piling up on the cops, it is revealed the FBI - one of the agencies involved in the investigation - is bringing new cutting-edge technology to find the 84-year-old.

While it is unclear what the new tech is, Morgan Wright, the CEO and founder of the National Center for Open and Unsolved Cases, has a hint.

The crime expert believes the technology could come from one of three areas.

They are advanced video forensics, signal tracking, or blockchain analysis.

"The solution to this case is going to be, I think, something technical, something that they come up with — new ways of analyzing data," he said in an interview with Fox News Digital.

"I'm looking at the video, the video forensics, signal analysis, blockchain kind of stuff."

Through video technology, authorities could find new clues about the masked suspect.

With signal analysis, location or cellphone data could be uncovered.

Blockchain tracing might reveal who sent the ransom notes to the Guthrie family.

"If I'm going to put it into three buckets, I'd say it's going to come out of one of those three buckets," Wright shared.

Nancy has been missing from his home near Tucson, Arizona, since Feb. 1.