rebel, toppling gadhafi. but he made the wrong choice and he entered a dark age of history for himself and many others. >> reporter: the question that occupies the mind of people in the region, who will succeed bin laden? while some analysts name a few al qaeda leaders, others think the organization has evolved in recent years and is now formed of many smaller terror cells in many different countries all over the world. one thing that most agree on, this does not mark the end of global terror. rima maktabi, cnn, abu dhabi. >> and there are still some questions which remain. how much did pakistan know and when did it know it? >> that's right. just ahead, we will try to find out if islamabad helped in the mission to take out osama bin laden. later, many revered and many more hated osama bin laden.