A 36-year-old Japanese man dressed up in Batman's Joker costume who started attacking passengers on a Tokyo train line on Sunday evening for no apparent reason, injuring dozens of people, has been arrested.
According to a BBC report, after the commotion the suspect ran to the nearest convenience store, casually confessing to the cashier, "I am suspect in the incident reported by news media", shortly before getting arrested.
He also allegedly told the police that it angered him when he saw women who "looked happy" and wanted to kill them. Among the victims was one elderly man who was found unconscious and a female student who was seriously injured, various reports say.
The Tokyo police department refused to release any other details.