Jamel Raphael McMillion was 22 when he was killed in Chester, Pennsylvania, on October 18, 2013. He was ambushed by two gunmen in a drive-by shooting as he was returning to his home; medics pronounced him dead at the scene.

The Chester Police Department investigated and worked to identify the shooters, but no arrests have been made. The case drew attention in the local community and remains unsolved; investigators continue to ask anyone with information to come forward.

What information can help shed light on who was responsible for Jamel McMillion’s killing?