The CIA shut down their Osama-huntin’ unit over a year ago. And the CIA and FBI alike both say that there is no evidence that bin Laden ever had anything to do with the 9/11 attacks.
Remember when you were so completely sure of yourself? Remember when you just absolutely knew that the mastermind behind the attacks was bin Laden?
In the future, perhaps you will be looking back on the day when you just absolutely knew the 9/11 attacks could not have been an inside job.