Christopher J. Williams, 34, was shot in the chest and killed outside an Exxon gas station at 15th and State streets in Harrisburg, Pennsylvania, in the early morning hours of July 2, 2015. He had gone inside to pay and was shot upon returning outside at about 2:15 a.m. Friends and family described him as a wonderful father, son, brother, and friend, and a makeshift memorial was placed at the scene.

Harrisburg police reviewed surveillance footage and, within 22 hours of the shooting, apprehended DeAndre Chism in connection with Williams’s death. The killing renewed local concerns about gun violence and prompted community calls for non-violent methods of conflict resolution.

If anyone knew Christopher or witnessed the incident at the gas station, please come forward with information.