A great movie with a great ending. That last part was in fact really unnecessary, but it shed a light in a lot of things that weren't told throughout the movie: [spoiler]we discovered that Jimmy was in fact a good man, but weak, and that Annabeth was the "mastermind" behind its behavior; Even though Sean said that we was not emotionally involved in this whole story, we learned that he is; Dave was never the same after that incident when they were kids, he wasn't so disturbed to the point of killing Jimmy's daughter, but he wasn't normal either; Sean didn't had any proofs that Jimmy killed Dave, apart from his unofficial "confession" on the street, which doesn't count for anything in court if no evidence is presented, Sean knows that and he is still seeking for a legal way to put Jimmy behind bars, not because he resented him for killing Dave or anything like that, but because or his sense of justice.[/spoiler]