Murder of Junko Furuta
On 4 January, 1989, After a defeat in mahjong, Minato and the boys were angry so they beat and burned her for two hours. Furuta would go into shock and died the next day. Minato's brother phoned him to tell them of her death so they rushed to the house. They put Furuta's body in a 55-gallon oil drum and filled it with concrete. They dumped the drum at a construction site in Kōtō.