History's Greatest Mysteries: Season 7, Episode 20

7 - 20: The Hunt for Osama bin Laden: Case Closed

On Sept. 11, 2001, coordinated terrorist attacks change America; mastermind Osama bin Laden threatens further violence, prompting a global manhunt by U.S. intelligence forces; nearly a decade later, U.S. Navy SEALs raid a compound in Abbottabad, Pakistan and kill him during a night operation.