Marietta teen wanted for murder Marietta Police searching for teenage murder suspect Investigators in Marietta are looking for the suspect before he can hurt anyone else. He's familiar to Marietta police and other local jurisdictions. MARIETTA, Ga - Marietta Police are trying to track down 17-year-old Donald Bannister. Investigators say Bannister shot and killed a man two weeks ago. Residents at an apartment complex on Massachusetts Avenue say they heard gunfire around 9 p.m. on June 15. "When officers arrived they found the victim laying on the ground bleeding," said Marietta Police Officer ...