Pierce was shot at least three times in his upper chest and two more times in his lower right side, according to medics at the scene. He was taken to a local hospital, where he later died.
Police have not said what triggered the argument inside the gas station, but a manager told them it was likely recorded on the store’s surveillance cameras.
Merriweather, who is from Lithonia, was arrested on a charge of murder. He was being held Monday afternoon in the DeKalb County Jail.
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In other news:
A GoFundMe is helping the man return to the United States.