9. Tsutomu Miyazaki
Known as The Little Girl Killer, The Otaku Killer and Dracula, this Japanese serial killer mutilated and murdered four little girls. His murders spanned 1988–1989 and took place in Tokyo’s Saitama Prefecture. His youngest victim was four years old, the oldest was seven. He molested their corpses and drank the blood of one victim, also eating her hands. He terrorized the families of all four victims, sending them letters and postcards where he described his heinous crimes, and also may have called their houses.
He never repented for his crimes, was sentenced to death on April 14, 1997, and executed on June 17, 2008. The very mention of his name still draws contempt and disgust from the Japanese public.