August 21, 1962 - Tsutomu Miyazaki
His crimes against four young children between 1988 and 1989 shocked Japan, but their cultural aftermath extended further than the killings themselves — media coverage of his vast collection of anime, manga, and horror material ignited a nationwide moral panic that stigmatized an entire subculture for years. The "Otaku Murderer" label, amplified by tabloid and broadcast press, drew a causal line between media consumption and violence that authorities and scholars would spend decades contesting. What the case ultimately exposed was as much about how societies assign meaning to atrocity as it was about the crimes themselves.
From Wikipedia
Tsutomu Miyazaki (宮﨑 勤, Miyazaki Tsutomu; 21 August 1962 – 17 June 2008) was a Japanese serial killer who murdered four young girls in Tokyo and Saitama Prefecture between August 1988 and June 1989. He abducted and killed the girls, aged from 4 to 7, in his car before dismembering them and molesting their corpses. He also engaged in cannibalism, preserved body parts as trophies, and taunted the families of his victims.
Miyazaki was arrested in Hachiōji in July 1989 after being confronted while taking nude photographs of a young girl. He was diagnosed as having one or more personality disorders, but was determined by authorities to be sane and aware of his crimes and their consequences. Miyazaki was sentenced to death in 1997 and was executed by hanging in 2008.
Miyazaki was dubbed the "Otaku Murderer" due to his extensive collection of anime, manga, horror videotapes and hentai as well as various other forms of pornography. This triggered a widespread moral panic against otaku in Japan, similar to the Satanic Panic in America.
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