An off-duty Chicago police officer shot a man on the Northwest Side. Police say two men caused a disturbance inside a restaurant in the 4300 block of West Fullerton Avenue, around 9 p.m. Saturday night. The off-duty officer, who was there at the time, identified himself and escorted them outside. Authorities say one of the men got a gun from a car and pointed it at the officer, who pulled out his own gun and fired. One of the men was hit in the leg.