For 17 years, the Unabomber skillfully eluded investigators, leaving behind no fingerprints, DNA, or usable forensic evidence but in the end it was his own words that gave him away.
Dr. Phil Stieg speaks with retired FBI criminal profiler James Fitzgerald, a pioneer of forensic linguistics whose analysis of Ted Kaczynski's writings helped crack one of the most notorious investigations in FBI history.
Fitzgerald reveals how investigators constructed a personality profile from the bomber's writings, identified the unusual turn of phrase that became a "linguistic smoking gun," and used patterns in language and behavior to identify this notoriously elusive criminal mind.
Plus, an exclusive glimpse into a family's traumatic moment when they discover their relative is a serial bomber.
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Archival audio courtesy of Videos For Change Productions
Excerpt from documentary in progress "Life Or Death" featuring David Kaczynski and Linda Patrik, Producers Mike Camoin and John Carlson.