The fatal shots came from inside the car. They killed Anthony Williams, who was sitting in the front passenger seat. They killed Christopher Thomas, who was seated directly behind him. And according to prosecutors, they obliterated the story concocted by the shooter, Jamell Demons, the rapper known professionally as YNW Melly, who could face execution if convicted of first-degree murder. Demons, 24, is accused of killing his two friends and fellow rappers in Miramar on Oct.