Antonio Smith was 9 when he was shot and killed on August 20, 2014, while playing in a yard along the 1200 block of East 71st Street in the Grand Crossing neighborhood on Chicago’s South Side. He was struck multiple times after being mistaken for a lookout by gang members who were driving through the area looking for rivals. Antonio was not affiliated with any gang and had recently started playing football.

Police identified 19-year-old Derrick Allmon as the shooter; he and three other 19-year-olds — Michael D. Baker, Jabari Williams, and Paris Denard — were arrested and charged with first-degree murder. Williams also faced a weapons charge. Investigators say Allmon discarded the murder weapon into a nearby sewer and that the recovered gun had been used in two other shootings, including another murder. The suspects were held without bond.

The community and faith-based groups assisted investigators and a reward was offered for information. Does anyone have information about Antonio, his last movements that afternoon, or the people involved?