On February 16, 2021, 22-year-old Diamonte Green was shot and killed inside the entryway of an apartment building on the 300 block of 33rd Street Southeast in Washington, D.C. The shooting occurred at about 3:50 p.m.; the Metropolitan Police Department opened a homicide investigation and asked the public for help identifying suspects and witnesses.

Investigators later identified and arrested 41-year-old Bernard Matthews of Southeast, D.C., on April 15, 2021; authorities charged him with Green’s murder. Prosecutors said the conflict began online, alleging Green had been threatening Matthews’ son on Instagram, and that Matthews walked several blocks to confront Green and shot the unarmed 22-year-old eight times.

Family, neighbors, or anyone with information about the shooting or the events that led up to it are asked to come forward.