Deandre Pierre Robinson, 26, was fatally shot on July 10, 2013, in the College Hill neighborhood of St. Louis. The shooting happened hours after another deadly shooting in the city that same day.

Investigators struggled early on because eyewitnesses were reluctant to come forward, and no arrests were announced in the immediate aftermath. The case was among several unsolved homicides linked to the city’s ongoing problem with gun violence. Has anyone in the College Hill area that day seen or heard anything that could help identify the masked assailants?