It's been a while since I read the books but I don't recall Jamie killing his cousin in the pen like that. I was wondering if I should chalk it up to artistic license on the part of the writers. In any event I found it beyond what Jamie would do. I mean here is this boy pouring out his admiration for Jamie who is his cousin, like he was a god and he kills him; nevermind that it was for a futile attempt at escape. Jamie is better than that, in all his other doings one can see a twisted reason, mainly to protect someone else...pushing Bran to save Cercei, even killing the Mad King was to save everyone from burning. But this.... No! Anybody else have a thought?