An examination of the suspect's smartphone revealed videos of him molesting multiple passed out women
TokyoReporter
Girl got to know the suspect through a social-networking service last May
Suspect told police that he punched his mother 'due to stress'
Suspect told police that they had talked about marriage before he suddenly dropped out of contact
Nozomi Kiryu killed her mother and carved up her corpse in 2018
Suspect wrote to the girl online, 'If you stay at a hotel, I'll pay you'
Suspect said, 'I did it to satisfy my sexual desire'
Victim told police that his mother attacked him 'all of sudden'
Woman lived in Tokyo's Setagaya Ward
Police believe the suspect targeted the couple's residence on three occasions