Old Wounds

Danny and Jackie believe a vigilante is on the loose when two separate shooting victims are both revealed to be members of a four-man group who gang-raped a young woman but were released due to inconclusive evidence. Erin faces her ex-husband Jack Boyle (Peter Hermann) in court, and advises him against getting Nicky's hopes up with news that he may be moving back to New York. Meanwhile, Frank deals with the winner of the "Commissioner for a Day" contest, a young man who is determined to get the police to take a stronger interest in finding his mother's killer. Nicky turns 16.