Police officers and members of the community gathered during a vigil to remember Gwinnett police officer Antwan Toney, who was killed in the line of duty, at Gwinnett Church.. A Gwinnett County police officer on Monday shot and killed Maynard, 18, accused of fatally shooting police officer Antwan Toney on Saturday near a school in the Atlanta area, police said. Shot on assignment for The Atlanta Journal-Constitution.