On the evening of January 6, 2026, 78-year-old Marvin Cook was fatally shot inside his home on South Lamon Avenue in the Garfield Ridge neighborhood on Chicago’s Southwest Side. First responders found Cook unresponsive with a single gunshot wound to the chest; he was pronounced dead at the scene.

Neighbors told investigators they saw about four men, all dressed in black, firing weapons in the street. A nearby car had a shattered window and multiple bullet holes.

Chicago police detectives from Area One were canvassing the area and reviewing nearby surveillance footage. No arrests have been announced and no suspects’ identities have been released. If anyone witnessed activity on South Lamon Avenue that night or has footage that could help, please come forward.