On Oct. 14, 2017, Corey Nelson went to the Austell home of Khristopher Dixon with a gun, according to investigators. Dixon allowed Nelson in, unaware of his motives. Moments later, Nelson shot Dixon in the back of the head with a .380-caliber handgun, prosecutors said.
Nelson then went downstairs and back upstairs, where he fired two more rounds into Dixon’s head, the DA’s Office said. A neighbor heard tires squealing as Nelson sped out of the neighborhood in a dark SUV before police arrived.