Writer and producer David Eick (Battlestar Galactica, Steven Spielberg's Falling Skies) and Michael Butterfield talk about the Zodiac's last known murder in San Francisco and the killer's influence on pop culture, including the classic crime movie Dirty Harry and the horror film The Exorcist III. Topics include: the Zodiac's possible escape route, the origins of and inspirations for the film Dirty Harry, the creation of the novel and film The Exorcist, the Zodiac's commentary on The Exorcist and influence on the sequel, the real-life killer who appeared in The Exorcist, actor Andy Robinson's thoughts on how his portrayal of the Zodiac-inspired killer in Dirty Harry shaped his career, and more. Contains spoilers for the films Dirty Harry, The Exorcist, The Exorcist III, and Experiment in Terror.

Written and produced by Michael Butterfield for ZodiacKillerFacts.com / Copyright 2019

Voice of "The Zodiac" by John Knight 

All music licensed and used by permission. “Run and Hide” and “Frozen Orb” composed and produced by Jens Kiilstofte. “Ghost” and “Creepy Piano Loop” composed and produced by JM Scherf. “Growing Shadows” created by Myuu. Provided by Mediacharge.