Enemy of the Truth: Myths, Forensics and the Kennedy Assassination by Sherry Fiester
In 2003, ABC News hired one of the nation’s leading forensics animation companies, Z-Axis Corporation, to independently assess Dale Myers’ very specific orientation of President Kennedy’s head at frame 312 of the Zapruder film.
Based upon that assessment, Z-Axis confirmed that President Kennedy’s head was turned away from Mr. Zapruder’s camera lens 25.7 degrees past profile, tilted to the left 18.1 degrees, and nodding forward 27.1 degrees.