Michael Peterman, 28, was shot to death at his home in the 1600 block of West 18th Place in the Heart of Chicago neighborhood on the South Side on the night of July 18, 2017. He had invited an acquaintance to the residence around 10:50 p.m.; during the visit the male guest pulled out a gun and shot Peterman in the abdomen. Peterman was pronounced dead at the scene.

Chicago police and the Cook County medical examiner confirmed the shooting was the result of a confrontation between Peterman and his guest. The gunman fled and no immediate arrests were made. Investigators interviewed witnesses and reviewed surveillance footage as they sought leads, but there were no significant breakthroughs reported in the immediate months after the killing.

If anyone knew Michael, the visitor he invited that night, or saw activity near West 18th Place on July 18, 2017, please contact investigators with any information.