On August 5, 2018 at approximately 11:00 a.m., a 21-year-old woman was walking northbound on Cicero Ave. from Madison St. when the offender approached her and engaged in a conversation. The offender displayed a dark colored object in his waistband and ordered her to walk with him. The offender led the victim to the rear porch area of an abandoned building in the 4600 block of West Washington Blvd. where he sexually assaulted her. The offender then fled in an unknown direction.