"Marc was a long-term target and an absolute key to what we want to do and that is no disrespect to anyone else, " Keegan told Manchester City's official website.

BBC: Foe joins Man City

Whatever demons first drove him, he had turned to an extreme ideology that expressed the kind of absolute certainty that can feel comforting in the short-term but that destroys all understanding in the long-term.

FORBES: Osama Bin Laden: The Anti-Leader