Byron Blassingame, a 27-year-old Black man, was shot and killed on May 8, 2009, in downtown St. Louis. He and two friends were leaving a concert when their vehicle stopped at a traffic light at 18th and Market streets and another vehicle pulled alongside and opened fire in what has been described as an ambush-style attack. Blassingame and another occupant of the car died from their wounds.

Investigators treated the attack as linked to ongoing gang-related conflicts in the city and concluded it was not a random act, with Blassingame and his companions believed to have been targeted. Despite an investigation, no suspects have been publicly identified, no arrests have been announced, and the case has grown cold.

Anyone who was in that area the night of May 8, 2009, or who has information about the shooting is asked to come forward.