Suspect also pursued a member of Hey! Say! JUMP in 2019
TokyoReporter
Suspect told police that he was 'in a relationship' with the victim
Cause of death was death by fire, police said
Suspect met the girl via Twitter
Suspect said, 'I killed my husband after holding a grudge for many years'
Suspect told police, 'I didn't do it'
Incident took place as the suspect was commuting to work in December
Police launched an investigation after receiving a report on the matter on February 26
Suspect called out to her, 'Let's have a good time'
Police believe that the incident involved around 10 people and up to five vehicles