Cops in Japan arrested a man who allegedly drugged and sexually assaulted more than 100 women who volunteered to participate in what they believed were medical studies on sleep. Hideyuki Noguchi, 54, allegedly gave the women sedatives, assaulted them, and filmed the sexual abuse. He reportedly made £57,000 (about $86,000) posting videos of the attacks online. The attacks occurred over two years before Noguchi stopped in November 2013, according to detectives. Officers said they had confirmed at least 39 victims, who ranged in age from their teens to their early forties, but believe from the available evidence that there are more than 100.