Welcome to FEBO from New Jersey
And best of luck in your search for the original owner.
Did you get any paperwork with the car when u bought it? The original owner's manual or warranty material could help. Any insurance cards in the glove box or even under a seat? Check with Georgia's Motor Vehicles. Rules for obtaining paperwork on cars varies from state to state. There are also titleing services that might be able to get some information based on your serial number. Do you have the name of the person you bought the car from? Track that person for some leads. I also think there are companies that can reproduce the dash tag with documentation. Do you have a build sheet?
Anyway, hope you are able to track it and again welcome. Every clue will help.