Daquan Boyd, 18, was fatally shot on August 18, 2013, in the 0-100 block of South Parkside Avenue in Chicago’s South Austin neighborhood. He was returning home from the Taste of Austin festival when two men on bicycles approached him and a friend and opened fire. Boyd was struck in the lower back, fled into an alley, and died there; his friend, also 18, was shot in the side and survived after treatment at Stroger Hospital.

The shooting happened just a few blocks from Boyd’s home and near the Austin District police station. Authorities suggested the attack might have been a case of mistaken identity; neither victim was known to be affiliated with gangs. Family members at the scene included Boyd’s twin sister Daquanta and their father George Spivey, who criticized the delay in removing Boyd’s body and said it reflected how victims of gun violence are treated in the community.

The investigation produced an arrest and trial of Markeas Brown on first-degree murder and attempted murder charges; surveillance footage reportedly showed two people acting together, though Brown was the only person charged. Anyone with information about Daquan Boyd, the events that night, or other witnesses is asked to come forward.