Shandon Barnes was 26 when he was killed on the afternoon of September 12, 2014, in the Algiers neighborhood of New Orleans. Driving a blue Chevrolet Trailblazer on Flanders Street at about 4 p.m., he was shot after a silver, four-door car pulled alongside. Barnes’ vehicle, struck by multiple bullets, crashed into the fence of a two-story apartment building near Socrates and Flanders streets. He was found inside with multiple gunshot wounds, including a fatal wound to the head, and was pronounced dead at the scene.

Barnes, known to family as Big Man, was a father of four and remembered by his sisters as someone who lifted people’s spirits. Investigators believed the attack may have been retaliation for a confrontation a few months earlier and at one point sought information about 24-year-old Wellington Cronin, Sr., though Cronin was never formally accused in the Barnes killing. The case later went cold and no arrests have been made, leaving the family without resolution.

Did anyone in Algiers in September 2014 see a silver four-door car or know more about the confrontation mentioned by investigators?