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ZODIAC KILLER UPDATE #1 - MICHAEL BUTTERFIELD
MICHAEL BUTTERFIELD - ZODIAC KILLER CONTRIBUTOR
Michael Butterfield is a writer who has conducted 20 years of extensive research on the Zodiac case. As a recognized leading expert on the unsolved crimes, he has served as a media source and consultant for the History channel series The Hunt for the Zodiac Killer and director David Fincher’s major motion picture Zodiac. Michael Butterfield appears in the Zodiac documentary Case Reopened, the History Channel series MysteryQuest, and the E! Canada series The Shocking Truth. He is also a contributing author for True Crime: Case Files, True Crime Magazine, and the two volume collection of essays titled A History of Evil in Pop Culture
http://zodiackillerfacts.com/