I've read the Robert Graysmith books about the zodiac killer who terrorized the Bay area in the sixties and early seventies. Hell, the books scared the hell out of me. Now Zodiac the film is to be released soon. Nobody knows if the Zodiac killer is alive, dead, in prison or in a mental hospital. Its one of the great unsolved crimes. There is certainly total evil in this universe. Why sociopaths like that exist is something I have often pondered. If zodiac is dead then I hope he is in one of the 12 Tibetan Buddhist hells. There are lots of websites devoted to the zodiac case. Its really scaring reading.

The book is a disturbing true crime story.

Yes, it is highly disturbing. And Graysmith has an equally scary sequel. When I used to read the origianl book as a kid I was scared to death. I slept with the lights on.