Photos of animal who attacked woman aboard a CTA Red Line train released

Police have released surveillance images of a man who robbed and sexually assaulted a 26-year-old woman at knife-point last Friday while she was riding the CTA Red Line on the South Side.
About 4:55 a.m. the woman was riding southbound on a vacant Red Line between Roosevelt Road and 79th Street when she was sexually assaulted and robbed by a man armed with a knife.
The attacker fled at the 87th Street station.
A community alert describes the suspect as a black man, between 20 and 25 years of age, with a slim build and a dark complexion. He was wearing a black hooded jacket and black clothing. He was armed with a black-handled knife with a long blade.

Anyone with information about this incident should contact Wentworth Area detectives, 312- 747-8380 or send tips to AREA1TIP@chicagopolice.org and reference RD# HV-170549.