Police are now investigating whether the suspect was behind several similar incidents
TokyoReporter
Suspect told police, 'I did this on other occasions as well'
Suspect denies the allegations, telling police, 'It is not factual'
Suspect denies the allegations, telling police, 'I did nothing'
Gang is a third-tier syndicate of the Yamaguchi-gumi
Boy was identified based on items found at the scene, police said
Police believe that the suspect also installed spy cameras in the office to harass the woman
Woman left her vehicle unlocked while she visited a convenience store in Adachi Ward last month
Suspect told police, 'I had no intention to kill'
Suspect reportedly wrote, 'Don’t make noise in the parking lot in the morning'