Nancy Guthrie update: Investigators hint at game-changing tech in search for missing 84-year-old

Will the FBI's next move finally crack the Nancy Guthrie case and unmask the suspect? Here's what an expert…

FBI investigates Nancy Guthrie case using video forensics, signals analysis, and blockchain; experts expect data-driven analysis—not traditional methods—will break it. Case demonstrates how emerging forensic-tech tools mature to enterprise-grade applicability in investigations.