GAFFNEY, S.C. -- A 29-year-old man shot while he pumped gas at a Gaffney convenience store has died four days after he was wounded.

Cherokee County Coroner Dennis Fowler says John Rawlinson died Friday night at a Spartanburg hospital. He was shot once in the head Monday night as he put gas in his car.

Investigators say Rawlinson was arguing with a man in the store just before he was shot. Authorities arrested 27-year-old Brian McGill on Tuesday and charged him with attempted murder. It wasn’t clear if he had an attorney.

Investigators are still trying to determine what the argument was about and whether the men knew each other.