Officers responded to a call of battery in progress on November 21, 2016 at 9:10 p.m. ,in the 300 Block of S. Michigan Ave. Officers observed three offenders battering a male victim, 57 years old. The officers intervened and learned the three offenders had stolen the victim’s book bag and then stabbed the victim with a cutting instrument. The victim sustained four puncture wounds and was taken to Northwestern Hospital in serious but stable condition. The offenders were positively identified and placed into custody.