That wasn't a brutal KO. What Francis did to Overeem was a brutal KO.
I'm sorry bro but you're wrong. They both got knocked unconscious...the only difference is DC took 6-8 heavy shots while out cold, Overeem took none.
DC was out cold much longer than overeem was. And when you consider everyone and their mom has knocked out Overeem while dC had never been knocked out, Jones beating on DC was much worse for the brain.
overeem was already damaged goods