A white security guard has been charged with second-degree murder in the fatal shooting of an unarmed Black man at a Memphis gas station in August. Citing court records, The Commercial Appeal reports that Gregory Livingston has been indicted for the killing of Alvin Motley Jr. in east Memphis. Records say Motley was a passenger in a car when Livingston approached and engaged in a conversation that prosecutors said escalated. As Motley walked toward Livingston during the argument, Livingston drew his gun and fired a single shot into Motley’s chest. He was pronounced dead at the scene. Livingston’s attorneys have said in court that a witness recalled Motley verbally threatening Livingston during the encounter.