What he did last year was awful, but I hope he can turn his life around and become a good guy before it's to late which is now, when he killed his brother and his parents. He has such a twisted sense of morals that were planted there by his hydra agent that posed as a good Shield agent. He needs someone like Sky to help him if she can get over his past, which would be difficult for anyone to get beyond.
I truly believe that he thinks he is doing the right thing. If someone had come into his life when he was a teenager instead of his Hydra mentor he would of turned out to be so different, it is rather sad, but unfortunately that is too often how the world works.