Where? Quote please.
And as I have already pointed out, his public attitude changed once he gained power. If I got a gun and went around shooting people who didn't bow to me, would you try to excuse me on the grounds that I didn't shoot anyone before I got the gun?
Look, either you believe he was divine messenger or you don't. If you do then you must believe you have the right to kill people for not believing. If you don't then you're not a muslim. It's as simple as that so anyone who identifies as a muslim is an enemy of the entire human race and so is anyone who defends them. No, you said "he didn't say that". According to the hadith and according to that which he wrote, he did say that, so either you lied about it not being said or you lied about having read it.