True, he's a case study at this point. Obviously the brain bleed and brutal concussions could be used to explain recent behavior, but at the same time he apparently went through pretty comprehensive testing just to get sanctioned to fight again, and his last fight was a title victory. However crap he and Soliman(especially) looked relatively, he was obviously fit to compete on paper.

Could be he's been using some hard drugs in conjunction, or that it's just a delayed response to prior brain trauma or something, who knows.