Jonathan Lewis was 29 when he was killed on December 28, 2014, in Chicago’s West Pullman neighborhood. He was attending a gathering when an unknown assailant opened fire; Jonathan was shot in the head and pronounced dead at the scene. The shooting occurred amid a pattern of gang-related violence the community had been confronting.

The Chicago Police Department investigated but initially made no arrests, hampered by a shortage of witnesses willing to come forward and fear of retaliation. The community responded with vigils and marches calling for justice and an end to the violence, and local media coverage kept attention on the case.

If anyone knew Jonathan, attended that gathering, or has information that could help investigators, please come forward with what you remember.