Someone from the business called 911, and officers began heading their way.The dead guy was found by police near the front door of the coin shop. The other guy, had pulled him outside before running like a rabbit. He left the gun in an alley.
Meanwhile, the owner and employee grabbed their weapons, resulting in an exchange of gunfire.
Self-defense works. The good guys were uninjured. One bad guy is dead. The other bad guy left with nothing.