Jeramie Anthony Hammonds, 20, and Kayla Marie Wells, 19, were found at 1:53 p.m. along wooded trails by people riding four-wheelers, according to Richmond County sheriff's Capt. Scott Peebles.
The unmarried couple lived at Wells' house in the 4500 block of Greystone Circle in Hephzibah.
Both had multiple gunshot wounds, Peebles said.
"They haven't been there long. I'd say within the last 24 hours," he said.
Investigators said they were questioning several people Monday night but would not release further details.
Traffic in the 2900 block of Glenn Hills Drive -- across from Glenn Hills Middle School -- was diverted for hours Monday as sheriff's vehicles lined the road near the beginning of the path.
Before the victims were identified, authorities released details of their tattoos -- including a depiction of the Disney character Tinker Bell on Wells' leg and the numbers 211 on Hammond's abdomen -- in an effort to determine who they were.
Peebles said a family member heard reports about the body art and called investigators.