ROBERT GRAYSMITH is the New York Times Bestselling author and illustrator of Zodiac , Auto Focus , and Black Fire . He was the political cartoonist for the San Francisco Chronicle when the letters and cryptograms from the infamous Zodiac killer were opened in the morning editorial meetings. He lives in San Francisco where he continues to write and illustrate. Graysmith's latest book Shooting Zodiac is now available in paperback! As well as the beautiful new edition of The Sleeping Lady: The Trailside Murders Above the Golden Gate in paperback and Kindle! Amazon | Barnes and Noble | Books-A-Million | Kobo | Apple Books | Google Play Books Two films have been based on his books: Auto Focus and Zodiac. Graysmith is portrayed in the film Zodiac by Jake Gyllenhaal. Also narrated by the author are the audiobooks Black Fire and Zodiac Unmasked .