Keith Cox, a 49-year-old African American and Air Force veteran, was killed while working as a security officer at the Martin Luther King Jr. Metrorail Station in Miami on August 25, 2015. He was accosted from behind around 9:30 p.m., shot multiple times, and was taken to Jackson Memorial Hospital where he died the following day.

According to investigators, the attacker was a black male about 5 feet 9 inches tall who stole Cox’s gun belt and a 9 mm weapon before fleeing in a dark-colored four-door vehicle that may have contained one or two other people. Detectives recovered a scarf near Cox’s body that did not belong to him and could be linked to the assailant. Cox’s family has mounted public appeals and a GoFundMe to support the family and push for leads.

No arrest has been reported. Does anyone have information that could help bring the shooter to justice?