I don't know, but going back through the OBL death threads here, I've read that one QP here was told by a legendary QP that it was the latter's opinion that OBL was dead. Therefore, I'll go along with that information, as that seems to be relaiable source.
I'm not trying to be cryptic, as folks can find the post, but just illustrating how arguing source credibility without revealing sources is ..well.. entertaining
Heading back to my lane...