On September 22, 1988, Robert J. Quinn, 26, was shot and killed during a late-morning shooting spree that began inside Comet Auto Parts at 1334 S. Ashland Ave. in Chicago, where he worked as the store manager. The store owner, John Van Dyke, 41, was also fatally shot at the scene.

Contemporary accounts identify the gunman as 40-year-old Clemmie Henderson. After opening fire in the auto-parts store, the shooter crossed the street and killed school custodian Arthur Baker, 34, at the Moses Montefiore School, then entered the building. Officer Irma C. Ruiz, 40, who responded, was killed in the hallway and Officer Gregory Jaglowski was seriously wounded; Jaglowski returned fire and killed the assailant, ending the rampage.

No arrests were made because the sole suspect died at the scene. Quinn’s birth and death dates and list him among the four victims of the September 22, 1988 attack in Chicago.