Demetrius Pinckney, 21, was shot and killed on March 8, 2016, on the 2300 block of Morris Street in South Philadelphia’s Grays Ferry neighborhood. Police found him about 7:52 p.m. suffering from a gunshot wound to the head; he was pronounced dead at the scene. A 20-year-old man was also injured and taken to Penn Presbyterian Medical Center.

Authorities say the shooting occurred during a chaotic night in the city that saw six murders. Investigators believe an argument and a subsequent chase involving a group on dirt bikes and ATVs may have led to the violence, but the exact sequence of events remains unclear. No arrests have been announced and the case remains an unsolved homicide. Pinckney was the younger brother of NBA player Dion Waiters; his loss was described as devastating to family and the broader community.

Did anyone in the Grays Ferry area see the bikes or ATVs involved that night, or have other information that could help solve this case?