Antwon Duncan was 20 when he was killed in a daytime shooting in Southeast Washington, D.C. The incident happened on the afternoon of Sunday, June 28, 2020, in the 2600 block of Birney Place, SE. Officers responding to reports of gunfire arrived about 12:33 p.m. and found Duncan with gunshot wounds; he was taken to a nearby hospital and pronounced dead.

Investigators quickly identified a suspect. On July 15, 2020, homicide detectives arrested 19-year-old Diamante Butler of Southeast D.C. Butler was charged with first-degree murder while armed. Reports say Butler and Duncan had once been friends.

Does anyone have information about what led to the shooting or the relationship between Duncan and Butler prior to June 28, 2020?