Early into this, we were told he was dependent on kidney dialysis. True or not? Who knows? If he's already dead, if he dies, if he's captured, it's not going to change things. He'll be replaced by someone else.
There is no war more long-lived, bitter, or bloody than a war based on what's said to be religious faith. Muslim friends of mine certainly don't call what's being spouted by radical Muslim extremists their faith.