Frederick Darnell Harris pleaded guilty in Rockdale Superior Court to voluntary manslaughter and possession of a firearm during the commission of a crime for his part in a 2007 shoot-out that left one man dead and several injured.The charges stem from an incident in October of 2007, when Harris, along with his brother Sederca O’Neal Harris and another man, Dexter Martrez Patman, exchanged more than 30 rounds in the parking lot of the Meadow Crossing apartment complex on Milstead Walk.During the gun fight both Harris and his brother were injured and a bystander, 32-year-old Santiago Eugenio