In mid-October, a woman in Madison, Wisconsin, reported a sexual assault to local law enforcement. In her police report, the 20-year-old victim alleged that Alec Cook, a student at the University of Wisconsin, attacked her in his apartment on Oct. 12, strangling her "until she eventually stopped fighting and he took it as permission," according to CBS. Over the course of two hours, Cook raped her again and again.
As it turns out, this woman wasn't Cook's only victim — far from it. After police arrested him, similar stories began trickling in. By any measure, it's sad news — partially because it's not particularly shocking. This snowball effect in sexual assault reporting is a pattern that's become increasingly visible over the past few years — and there are psychological reasons why.