Stannis had Melisandre cast a spell to kill the other kings. If you're going to blame Catelyn, Robb and Renly on him, you've got to also blame Balon and Joffrey on him as well. (ok, he's dead to rights on Renly, what with the shadow baby and all, but I don't think Robb, Catelyn, Joffrey and Balon are on his hands).…