Gary McCallister was 29 when he was shot and killed in Detroit, Michigan, on August 28, 2016. His death was ruled a homicide during a summer that saw a marked rise in shootings and violent fatalities across the city.

No suspects have been publicly identified and no arrests have been announced, and McCallister’s name appears in databases that list unsolved homicides in Michigan.

The case remains open and unresolved; anyone who knew Gary, witnessed the events of that day, or has information that could help investigators is urged to come forward.