PHOTO: Three Macon-Bibb County firefighters and a tractor-trailer driver were taken to The Medical Center of Central Georgia on Wednesday after the tractor-trailer truck rear-ended the fire truck on Interstate 16. Assistant Fire Chief Cliff Rushin said the firefighters, David Mahone, 31, Marcus Lamb, 42, and Keith Carter, 33, were all conscious and alert. He said their injuries don’t appear to be life-threatening.