Zodiac (true crime book)

For other uses, see Zodiac (disambiguation).

Zodiac

Book cover
Author	Robert Graysmith
Language	English
Genre	Non-Fiction Crime Novel
Publisher	St. Martin's Press
Publication date	1986
Publication place	United States
ISBN	0-312-89895-9
OCLC	12133242
Dewey Decimal	364.1/523/0979461 19
LC Class	HV6534.S3 G7 1986

Zodiac is a non-fiction book written by Robert Graysmith about the unsolved serial murders committed by the "Zodiac Killer" in San Francisco in the late 1960s and early 1970s. Since its initial release in 1986, Zodiac has sold 4 million copies worldwide. Graysmith was a cartoonist for the San Francisco Chronicle and later also wrote Zodiac Unmasked.

Synopsis

This book gives the history of the Zodiac killer who was active in the 1960s and 70s in California. It describes the investigations of the many law enforcement branches that worked on the case and other murders that might have been committed by Zodiac, including the 1966 Cherie Jo Bates stabbing. Later chapters deal with Graysmith's many theories on the case, and the book eventually cites two possible suspects (who are given pseudonyms) and details some of the circumstantial evidence against them. Graysmith received assistance from police departments that fell within the jurisdictions of the murders, especially from Inspector Dave Toschi from the San Francisco Police Department, who had worked the Zodiac case.

Origin of the book

Robert Graysmith was a cartoonist working for The San Francisco Chronicle in the 1960s when the Zodiac murders started. The Zodiac sent letters to The Chronicle which he wanted published in the paper. The letters included evidence that he was in fact the Zodiac. Graysmith saw the letters arriving at The Chronicle and became intrigued. For years the cartoonist kept his own scrapbook of evidence, from which he independently attempted to determine the Zodiac's identity. When asked why he began working on the book, Graysmith replied, "I saw it going into obscurity. Nobody is sharing all the different jurisdictions, and all this information. What if I as a private citizen went around and got all this information?" This led to a 10-year period to collect information, and eventually the book was published in 1986 after a number of delays.

Film

The 2007 adaptation Zodiac is roughly based on Graysmith's books, Zodiac and Zodiac Unmasked. The film follows the work of Graysmith from being a cartoonist in 1969 to several years after the publication of the first Zodiac book in the early 1990s.