According to the FBI, there were only 19 serial murders in the ’60s, while the ’70s saw a flood of 119, and the ’80s yielded 200. The country watched in stunned fascination as one unshaven white man with a supervillain name after another was arrested for inhuman crimes: the Hillside Strangler, Son of Sam, the Freeway Killer, the Vampire of Sacramento, the Green River Killer, the Sunset Strip Killer, the Midtown Slasher.