On the evening of May 19, 2009, 16-year-old Antwun Parker entered the Reliable Discount Pharmacy in Oklahoma City with a 14-year-old accomplice in a planned robbery. Parker was unarmed; the younger accomplice carried a pistol. Pharmacist Jerome Ersland, 57, drew a firearm in response. Video shows Ersland fired once, striking Parker in the head and rendering him unconscious on the floor. The footage then shows Ersland retrieve a second handgun from behind the counter and fire five additional shots into the already incapacitated teenager. Those later shots proved fatal.

Public reaction shifted after the surveillance video was released. Prosecutors argued the first shot may have been self-defense but that the subsequent five shots amounted to an execution of a subdued person; a jury later convicted Ersland of first-degree murder and he received a life sentence. The 14-year-old who entered the pharmacy with Parker and two men accused of planning the robbery from outside were also charged under the felony murder rule. Parker’s mother filed a wrongful-death suit that was settled out of court.

If anyone knew Antwun, his movements that night, or has additional information about who planned the robbery, please share what is known.