The NYPD is currently looking for a man who sexually assaulted a 36-year-old woman on the Upper West Side on Friday night. CBS 2 reports that the victim was walking toward her home on 105th Street and Central Park West at around 11 p.m. when her assailant began following her. As she arrived at her building, the man pushed her down and into her apartment, where he choked her and forced her to perform oral sex on him. He then fled but, the New York Daily News reports, he left his hat at the scene. The suspect is described as 6-foot-two 40-ish black man last seen in a brown-and-white striped shirt. Meanwhile, the cops are hoping to get a more useful idea of who he is by testing the hat for DNA evidence.