Alexander St Jean, 23, was killed in a chaotic exchange of gunfire after an attempted home invasion on Hendren Drive in Orlando on December 5, 2018. He and a 16-year-old boy were dropped off at Florida Hospital East; St Jean was pronounced dead shortly after arrival and the teenager suffered non-life-threatening injuries. Investigators recovered shell casings and other evidence at the scene but initially found no victims there.

Police say two masked men tried to rob a home where the intruders expected drugs, money, or other valuables. Joseph Rivera, 24, arrived during the incident and opened fire on the suspects, touching off a pursuit and additional shooting through the neighborhood. Witnesses reported Rivera fired until his ammunition was spent. The suspects fled in a gray car that was later found with bullet holes at the hospital.

Fingerprints on the emergency room window linked 23-year-old Palmer Cox to the case; surveillance of his home preceded his arrest. Rivera was charged with murder and Cox faced charges tied to the home invasion and related events. Anyone with information about what happened is asked to contact investigators.