Murder of Junko Furuta
On 25 November 1988, Furuta was on her bike and riding home from her part-time job at a electronics retailer. Miyano told his friend, Nobuharu Minato, to kick Furuta off her bike and run away. Miyano then asked to escort Furuta to her house. Miyano instead took Furuta to an abandoned warehouse where he raped and beat her. He told her that he had connections to the yakuza, knew where her family lived and would kill them if she told the police. Miyano took Furuta to a hotel where he along with Minato, Jō Ogura and Yasushi Watanabe were waiting and all took turns raping her. They had recently also done this to another girl.