About 6:10 a.m., near the 87th Street stop, the 60-year-old victim was shot multiple times while arguing with someone on the train, according to authorities.
During a brawl aboard a CTA Red Line train on the South Side on Saturday morning, a man was shot and badly injured.
About 6:10 a.m., near the 87th Street stop, the 60-year-old male was engaged in a heated argument with another passenger when he was shot multiple times, according to Chicago police.
When he arrived to the University of Chicago Medical Center, his condition was rated as critical, according to the police.
No one was detained.