Osama isn't dead?
Ofcause he isn't dead. Why kill the ultimate source of info on terrorism sponsors? If you claim he is dead you can keep him in a basement for however long you need.
I don't think that Bitcoin is usefull for terorists. The way Al Caida works today with low tech insurgents and attacks, they would'nt know how to make use of Bitcoin for anything.
And 2pac is in Cuba with Heath Ledger, and Michael Jackson.