This is all fake.It's a well known fact that the laden family has very good relationships with the bush family in fact they are partners in a business of some sort.Every so called terrorist activity that happened in bush's time was blamed on osama 'cause osama conveniently used to send a tape of self confession after everything happened.Everybody knows 9/11 was fake and staged by the government(bush is too stupid to come with a plan like that)just to take control of the oil in iraq.So my guess is osama died of old age or maybe due to some medical condition and the american government took the chance to be all heroic by stating they killed a man which has been evading them for 10 bloody years.