Nancy Guthrie Update Today: Experts Explain How the Case May Be Solved

An expert who worked on the infamous Idaho murders case has explained how digital technology could unearth new clues in the mysterious disappearance of Nancy Guthrie.

“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,” Heather Barnhart, a digital forensics expert with the SANS Institute and Cellebrite, told NBC News.

Authorities are pursuing other avenues, of course. For example, the growing...