Will Kürlich Kerl
Banned
What happens if Osama bin Laden wasn't in the Pakistani complex when the US Marines descended on it on May 2nd, 2011?
Nothing would happen. It would most likely not leak out, and if it would it would be much later without any political effects. Osama was too sick and incapable at this time to be any real threat to USA (though his organisation was/still are) so him being alive for awhile longer would also have no effects.