User blog comment:Thornclaw Braveheart/Witch-king of Angmar vs. Eragon Bromsson/@comment-143604-20111128221144/@comment-143604-20111128223821

It wasn't some kind of special thing keeping him from being killed by a man, it was a prophecy- he wasn't told he couldn't be killed by a man, he was told he WOULDN'T be killed by a man, a huge difference. And of course it was by "no man's hand", which leaves SO many opportunities still. It's a common misconception in the story. That said, I appreciate the "keeping in line" of continuity by having the dragon kill him.