Diamond R. Garner, 23, was shot and killed on February 24, 2016, on Chicago’s West Side in the Austin neighborhood. He was found with fatal gunshot wounds and died shortly after emergency responders discovered him.

The killing took place in Austin, an area described as struggling with violence and gang activity; Diamond’s death came during 2016, a year that saw a marked rise in homicides across Chicago. His death was one of many violent incidents that contributed to one of the city’s most violent periods in recent memory and underscored calls from local leaders for more effective measures to address root causes of crime.

If anyone knew Diamond, was in the Austin neighborhood that night, or has information about this shooting, please come forward to help investigators.