Anthony Campbell was shot and killed in Tulsa, Oklahoma, in April 2013. His death is described as a calculated execution carried out in retaliation for testimony he gave in federal court two months earlier; Campbell had provided information that aided prosecutors against fellow gang members.

Investigators identified two alleged members of the same gang as primary suspects. Lorell Antonio Battle, 31, and Gaywone Blades, 19, were indicted by a federal grand jury on counts that included murder, conspiracy to commit murder, and using a firearm in retaliation against a federal witness.

The federal indictments emphasized that the killing was tied to Campbell’s cooperation with law enforcement and framed it as an attack on the justice system as well as on him personally. Anyone with information about Campbell, his movements in Tulsa in April 2013, or knowledge of the alleged plot is asked to come forward.