On September 1st, 21-year-old Ena Matsuoka, member of the Japanese idol group Tenshi Tsukinukeni Yomi, was attacked by an obsessive fan outside her Tokyo home. In custody, the fan revealed that he was able to track down the idol’s home location by analyzing selfies she uploaded to social media and zooming in on her eyes.
26-year-old Hibiki Sato, was able to identify her local station based on scenery reflected in her eyes in selfies she posted, and then matching it to a street using Google Maps Street View. He was also able to estimate the location of her room by observing the positioning of curtains and lighting in videos Matsuoka uploaded to social media.
He followed her home from the station after waiting for her, as she reached her door, grabbed her from behind, covered her mouth with a towel, dragged her away to a dark corner and groped her, injuring her face. He admitted to the assault after being arrested and stated he was a big fan of Matsuoka.