Violent flashbacks of loud screams and gunshots choke off his first words. As if reliving every flesh-piercing wound he withstood, the young man tightens his eyes from the horror that surrounded him on the night of Feb. 6. He had been a promoter for a talent showcase at Big Daddy’s Import Drafthouse on Tennessee Street for more than a year. But that night’s showcase was special. He had recently accepted a director of communications position with multi-millionaire James Wright Jr., chief executive officer of Wright Brain Ventures in Atlanta.