Knife attacker on Tokyo train wanted to kill women who "looked happy"

According to the local media, the attacker who stabbed at least 10 passengers on a commuter train in Tokyo, told the police that he became furious when he saw women who "looked happy" and wanted to kill them. The 36-year-old man was arrested in another part of Tokyo. "I began feeling like I wanted to kill women who looked happy about six years ago. Anyone was fine, I just wanted to kill a lot of people," the attacker said.