Brian Raynor Sickles Jr. was shot and killed on the morning of Thursday, June 18, 2015, in the 800 block of 51st Street SE in the southeastern section of Washington, D.C. The shooting occurred at approximately 11:27 a.m.; emergency responders pronounced the 42-year-old dead at the scene.

The Metropolitan Police Department’s Homicide Branch opened an investigation, canvassed the area for witnesses and evidence, and publicly appealed for tips. A reward was offered for information leading to an arrest and conviction. Despite those efforts, no arrests were announced and no suspects were publicly identified, and the case later went cold.

The motive and circumstances that led to the shooting remain unresolved and the investigation is still listed as open. Does anyone have information about that neighborhood on June 18, 2015, or recall seeing anything that morning?