I do suspect Wayne Williams wasn’t the only killer in Atlanta at the time. While only a few cases have been linked to him it’s on shaky evidence. Think about it this way: how common was a white 1970 Chevy station wagon in the Greater Atlanta Metro area/Chattanooga Metro area during this time? I would assume it was quite common but then again I don’t have access to DMV records. Also that carpet could have been owned by other people in the greater metro area of Atlanta or in the metro area of Chattanooga. The fact that the original detectives didn’t think to contact law enforcement agencies outside the city itself is a shame because it might have helped more victims. A few victims I think were filicide and others might be a mix of rising gang violence and unknown killers commuting from the greater Atlanta metro area. Something about this case has always felt off to me, like Wayne Williams was linked to this crimes because he fit the Atlanta Police Department’s image and their desire to close the case. Instead they only put a bandage on. The killings continued even after WW was convicted, they just shifted a bit from what I have found which tells me he wasn’t the only predator active.