Forensic experts explain advanced techniques: Lidar scanning, AI, and audio analysis in Nancy Guthrie investigation

Nick Barreiro, a certified audio/video forensic analyst, details the FBI's use of a lidar scanner to create a precise 3D model of the porch at Nancy Guthrie's home, combined with an identical camera and height chart for accurate suspect measurements from surveillance footage. Cybersecurity expert Theresa Payton discusses the potential for unreleased audio evidence and the application of AI to enhance imagery and create suspect sketches, suggesting that law enforcement might be recreating events and conducting tests to avoid tipping off the abductors.