ZodiacKillerFACTS.com is owned and operated by Michael Butterfield, a writer who has conducted over a decade of extensive research on the Zodiac case. The website provides a factual examination of the crimes as well as an image gallery featuring the actual Zodiac letters, police reports, FBI files and other documents. Butterfield has served as a consultant for director David Fincher’s major motion picture ZODIAC and has appeared on television documentaries such CASE REOPENED and the History Channel series MYSTERYQUEST.