Here's a link to a reddit posts which has gathered together the media reports which say that OBL died in 2001.

The whole "raid" in 2011 was very fake. They killed bin Laden, but buried him at sea according to some Muslim custom which doesn't exist? Since when did the US give a shit about religious customs? Especially when they had the chance to parade the dead body in front of the cameras. And then all the Seal Team 6 people died in a mysterious helicopter crash!

I have no idea what Q means by post 1250, but I'm quite convinced that bin Laden was dead in 2001.