User blog comment:Fimber/Things that went wrong in "The Death Song of Uther Pendragon"/@comment-5644179-20121022090619/@comment-4190137-20121022103232

Uther only knocked Arthur out, but he was going to kill him if Merlin wasn't there to stop him. Watch the scene again and you'll see.

And P:S, I'd recommend replying to comments rather than making new comments.