Tsutomu Miyazaki
Tsutomu Miyazaki tops the list of unsettling and terrifying serial killers. His terrible actions earned him a number of nicknames, such as Dracula Miyazaki and The Otaku Murderer.
A young girl was kidnapped, and murdered, and then her body was treated inhumanely. Besides eating the victim’s hand, he also ate their blood. He sent postcards detailing the murders to the families of the victims, reportedly keeping body parts as souvenirs. As a result of strangulation, Miyazaki’s 45-year-old dad committed suicide in 2008.