||Detective Edward Madden 26, was a 6-year veteran of the Chicago Police Department, assigned to the Detective Division. On September 28, 1972, Officer Madden and two detectives were conducting surveillance on Gilbert Ziemba’s residence in the 1400 block of West Olive Street. Earlier in the day, Ziemba had disarmed and stolen an officer’s gun. While Officer Madden’s unit was in the building, a second unit of three officers arrived. Each unit unaware of the other’s presence. Officer Madden had lowered his gun to the side of his leg, as he positioned himself on the second-floor landing. Meanwhile, an officer from the second unit entered the foyer below and saw a man holding a gun to the side of his leg. The officer’s viewpoint of the second-floor landing was obstructed by the staircase and he shouted, “Police! Hold it, right there.” Officer Madden, unaware of the second unit’s arrival, turned to look and was accidently shot. Officer Madden died on October 2, 1972 at Edgewater Hospital. A coroner’s jury concluded that the shooting of Officer Madden by a fellow Chicago Police Officer was accidental. Gilbert Ziemba, 31, an ex-convict on parole for armed robbery and wanted for five armed robbery warrants was arrested after a tipster recognized him in a bar. Detective Madden’s funeral mass was held at St. Alphonsus Church and he was laid to rest in St. Joseph Cemetery. He is survived by his siblings, Michael, Patrick, Mary, Jerry, and Judith.