Henry County police are asking for the public's help in finding two people wanted for questioning in the homicide of a man whose body was found outside a Stockbridge Wal-Mart.

The victim, believed to be about 67 years old, has not been positively identified, Henry County police Sgt. Joey Smith said Tuesday.

The man's body was found early Saturday in a van parked at the Wal-Mart on Hudson Bridge Road. He had been shot in the head.

Smith said Marta Luz Diaz, 54, and her son, Jose Trinidad Bercian-Diaz, 32, were last known to be with the victim.

He described the two as "persons of interest" and asked that anyone with information on their whereabouts call investigators at 770-288-8374 or 770-288-8200.