I'd say there is a 60% chance this is true. And if it's true, good riddance although I don't think anything will change. If nothing else, this should be a morale boost for our troops which is great.
Steve Benen has a good post at The Washington Monthly. As he points out, prior to the Iraqi invasion, Bush had many chances to get Zarqawi but refused. Didn't want any reason not to invade Iraq.
How many have died because of Bush's refusal to get Zarqawi 4 years ago.