Damond Dawson, a 23-year-old African American man, was fatally shot on April 19, 2016, in Foster Park on Chicago’s South Side. He was part of a group — including his brother and other relatives and friends — who were at the park around 2:20 a.m., rapping and shooting a music video titled Two Techs and a 50 Shot when two gunmen opened fire. Dawson was struck once in the back of the head and collapsed between a building and a playground; he was pronounced dead at the scene.

Four other people were wounded. A 19-year-old woman was shot twice in the groin and taken in serious condition to Advocate Christ Medical Center. Three men, ages 20, 25, and 18 — one of them Dawson’s brother — sustained injuries and went to the same hospital, where their conditions were later stabilized. Investigators described the attack as an ambush, with one gunman approaching from the west and another from the south. The group’s video and camera were turned over to police.

Area South investigators said the shooting might be gang-related, but no specific motive has been publicly identified and no arrests have been announced. Does anyone who remembers Foster Park that night or who knew Damond have information that could help the investigation?