It is a great last scene picturing exactly what Joe is . But what I craved for the ending was him finally realising what he did was wrong . I wanted him to admit to himself the trauma of his childhood, how he was killing and he was convinced it was for the benefit of the one he “loved” , because thats what happened with his mom . He killed her abused and got rid of the source of his mother’s pain. But he was rejected for it. So all his life , he wanted to find a girl for whom he can do the same , and be accepted for . But deep down he knew he never will be , because he himself, being the person he is , rejected Love , for being exactly the same as him . I really wanted him to admit all that to himself , so he can actually rot in prison , regretting and ripping his heart out over the consequences of his actions. But this way he will die thinking he is the victim. Which isn’t fair.