According to the actual police department files from the original murder cases, there was no "Zodiac Killer," only some phony letters to the SF Chronicle claiming credit for some unrelated murders, exploited in a book full of lies by Robert Graysmith (real name: Robert Smith, Jr).

According to the actual police department files from the original murder cases, there was no "Zodiac Killer," only some phony letters to the SF Chronicle claiming credit for some unrelated murders, exploited in a book full of lies by Robert Graysmith (real name: Robert Smith, Jr).