The Story Of A Real-Life Joker Killer

This episode of TruRed CRIME explores the chilling real-life case of Kiyota Hattori, a 24-year-old man who carried out a violent rampage on a Tokyo subway train on Halloween night, October 31, 2021. Inspired by the Joker character from Batman and influenced by a prior knife attack on the Odakyu Line, Hattori meticulously planned his assault over several months, targeting a crowded train with a knife, pesticides, and lighter fluid. He stabbed a passenger, set parts of the train on fire, and caused 17 injuries—though miraculously, no one died. Hattori admitted he sought the death penalty, viewing his actions as a form of suicide through mass murder. The episode delves into the societal pressures that may have contributed to his descent, including isolation, workplace struggles, and the 'Himote-otoko' (unpopular man) phenomenon akin to Western incel culture. It also examines Japan’s high surveillance infrastructure, the vulnerability of enclosed public spaces like trains, and the broader cultural debate over media influence, particularly the potential banning of Joaquin Phoenix’s Joker film due to its perceived connection to the attack. The narrative raises urgent questions about mental health, social exclusion, and the copycat nature of violent crime in the digital age.