The Detectives Who Never Forget a Face

A predator was stalking London. He would board a crowded bus at rush hour, carrying a Metro newspaper, and sit next to a young woman. Opening the newspaper to form a curtain, he would reach over and grope her. The man first struck one summer afternoon in 2014, on the No. 253 bus in North London, grabbing the crotch of a fifteen-year-old girl. She fled the bus and called the police, but by that time he had disappeared. A few months later, in October, he assaulted a twenty-one-year-old woman...
Read more: http://www.newyorker.com/magazine/2016/08/22/londons-super-recognizer-police-force?source=Snapzu