Police Chief Stan Bradley said Sunday evening that Danny Lamar Gravley, 47, was found deceased in his white Toyota truck on Red Top Mountain Road about 5:30 a.m.
The cause of death is not being released at this time.
A witness told police a white, four-door passenger car left the scene about the time of the incident. No information on the suspect is being released, Bradley said.
The body has been sent to the Georgia Bureau of Investigation's crime lab, and Bradley said more details are expected once the results of the autopsy are returned.
The GBI also is assisting in the investigation.