The man is identified as Harry Donald Hardin Jr, 49, Columbia County Coroner Vernon Collins said. He was last seen alive May 11.
A neighbor called authorities to check on Hardin, who was found in “an advanced state of decomposition” inside his Belair Pines home off South Belair Road near Interstate 20, Collins said.
There were no weapons found or other initial indications of suicide or foul play, Collins said. He could have died from natural causes.
Authorities are awaiting the results of an autopsy being conducted at the Georgia Bureau of Investigation Crime Lab in Atlanta.