Marquis Lamont D’Jon Champion, a 16-year-old student at Bay View High School and nephew of Milwaukee Alderman Mark Chambers Jr., was fatally shot inside a residence at 7936 West Hampton Avenue on the night of October 20, 2025. According to the criminal complaint, Champion and two other teenagers were sitting at a kitchen table when Martell De Ante Haire, known as Gotti, returned to the kitchen with a small black handgun and began firing. Two other teens were wounded; one required emergency surgery for multiple gunshot wounds and the other was treated at Froedtert Hospital.

Investigators recovered nine spent 9mm casings inside the home and a glass liquor bottle with latent fingerprints identified as Haire’s. Witnesses identified Haire from photo arrays and surveillance audio captured about 10 to 12 rapid gunshots, followed by a person running from the scene. Champion managed to get outside before collapsing; he was found slumped in the front passenger seat of a silver sedan and later pronounced dead. An autopsy listed gunshot wounds to his head, neck and right upper extremity as the cause of death.

Haire has been charged in connection with the shooting; the charges are allegations unless proven in court. If anyone has information about Marquis, the shooting, or the events that night, please share what is known with investigators.