When Did Bin Laden Die?

So we were told Bin Laden died in 2001. Then we were told he was dead in 2002. And 2005 and 2006 and 2007 and 2009 before he was killed again in 2011. So which is it? And how do we know? Good question. Join James as he explores this and other conundrums in the 39th edition of Questions For Corbett.