He's Ryan Selkis, a well-known Bitcoin blogger who leaked the original Mt Gox insolvency documents. This could be wrong, however he has the best track record so far.
His recent tweets have made me question him as well, however he's had a large number of threats over the past 24 hours (for allegedly destroying an impending a buyout of Gox by leaking fraud, which if true would have cost Gox patrons money). I think he's just wrapped up in it, and maybe a bit scared.
