Shortly after midnight, a man wearing a black mask entered the store at 1520 Walton Way and demanded money from the clerk, according to a Richmond County sheriff's report.
He then made his way to the pharmacy counter, where the pharmacist confronted him and fired three shots, sheriff's Sgt. Calvin Chew said. None of the bullets hit the robber, who fled.
Authorities described the robber as about 6 feet and 180 pounds, Sgt. Chew said.