About 8:50 p.m. Thursday, an 18-year-old man and another male were in an argument until the male took out a handgun and began to threaten the 18-year-old in the 6700 block of South Cottage Grove Avenue in the Park Manor neighborhood, police said. The 18-year-old then took out his own gun and began firing at the male, who returned fire, shooting the 18-year-old man in the stomach. The male ran from the scene.
