Denard Allison, 37, was fatally shot on May 18, 2025, on the 700 block of Notre Dame Drive in Matteson, in the south suburbs of Chicago. The Cook County medical examiner reported he was struck multiple times and pronounced dead at 10:17 p.m. Early accounts did not make clear whether the gunfire happened inside or outside the residence; investigators worked late into the night to secure the scene and notify family.

Local coverage noted the shooting alongside another suburban homicide the following week, and officials emphasized that separate investigations were underway. No motive has been released, no arrests have been announced, and police have not identified a person of interest. An entry for Denard Allison later appeared on a public gun-violence memorial site where mourners left virtual candles.

Neighbors, friends, and relatives remain without answers as detectives continue to seek leads in this case. If anyone has information about what happened on Notre Dame Drive that night, please share it with Matteson police.