Нужно написать что случилось с парнем. (в прошедшем времени)

A while ago something happened with a guy I know. This guy went to the store, and was just as usual buying his chips and soda. All of a sudden, the cashier put told this guy to stop where he is, and to give him all his money. The guy was shocked and had no idea why the cashier asked this of him. But he did what he was told, for he had a feeling that the cashier has a gun behind him.