Sheikh missing since plane crashed into lake in Morocco . Sheikh Ahmed bin Zayed Al Nahyan was managing director of Forbes . He also was a brother of the ruler of Abu Dhabi and the Dhabi Investment Authority ' 27th richest person in world .
Sheikh Ahmed bin Zayed Al Nahyan missing since plane crashed into lake in Morocco . Sheikh was managing director of the Dhabi Investment Authority . He also was a brother of the ruler of Abu Dhabi and Forbes ' 27th richest person in world .