Derrick Black, 24, was shot and killed on Thursday, July 30, 2015, at about 9:25 p.m. in the 3300 block of Georgia Avenue NW in Washington, D.C. After being shot he fell into the street and was run over by a car; the whole incident was recorded on a security camera. Physical evidence recovered at the scene included a gun magazine that held ten cartridges but contained three when found and a cell phone linked to a suspect. DNA on the magazine matched Sean Green.

During a Metropolitan Police interrogation Green’s account changed several times — from denying involvement to admitting presence and at one point saying he pulled the trigger but only after being forced by another man he named as Mike-Mike and later Man-Man. Witness descriptions of the shooter varied, with some saying the shooter was thin with long dreadlocks while a Metrobus driver described a medium build with no dreadlocks. A jury later convicted Sean Green of first-degree murder while armed and related firearm offenses; he received a 38.5-year sentence for the killing of Derrick Black.

Know anything about Derrick Black, the scene that night, or the people involved?