The Vampire of Sacramento, or Richard Chase, was an American serial killer who had schizophrenia and hypochondria. These illnesses caused him to kill and consume a big amount of animals, and 6 people, including two children. But that wasn't it, he also drank their blood (hence his nickname), and did very disturbing things with some of the bodies. This case is absolutely insane. If you are sensitive to this kind of stop, please skip this one.