I need help finding a name of a movie ! Help ??!!?

So me and my friend watched this movie a while back but I can't remember the name but I'm gonna list the stuff I remeber from the movie .......ok so there's this girl she leaves her house to go with this boy and I think the boy is about 2 rob this gas station and I think this gurl he knows works at the gas station and there setting up a scene 2 "look" lyk there was acctully a full robbery and he shoots the girls hand (the girl who works at the gas station or store) but I remember at the end 1 of the girls end up dying sorry that's all I remmeber plzzzzzzz help me get the name of the movie