(Oregon City, OR) -- Four people have been sentenced to prison after pleading guilty to robbing a grocery store and assaulting the manager. It happened at the Grocery Outlet on McLoughlin Boulevard. The suspects stole phone chargers, snacks and Red Bull energy drinks. Two suspects punched the manager in the chest while two others kicked him in the head and ribs. The four people were sentenced to between 13 and 48 months in prison.