I read the whole thread today. I haven't read any following threads. I have to say this:

The courts may be the only ones who can see who was the guy on IRC from whom Baron bought the 9000BTC in exchange for LRUSD (as Baron says - they may have done their talk in private, and the thief may have been the first to do a transfer), decide that he is the thief and give the money back to the guy whose MtGox password was guessed [and to Baron]. To do that, they will have to see the times that the transfers took place. If the transfer from MtGox to Baron's BTC client happened at around the same time as a transfer from Baron's LR account to the thief's LR account (market prices), and the thief is a separate person, that would show that Baron is innocent.

EDIT: Sorry, I should have said "give the money back to Baron, and order Baron to give the 9000BTC back to MtGox".

One thing that can be done here is that Baron can give the details of his LR transaction with the thief, so we can verify it with LR's form, like the other transactions he gave. Proving that the thief is a separate person though is a different business altogether. I don't know if this can be done here.

EDIT: And even if it can be done, it could just be a friend of Baron...

EDIT: And even if it can be proven that Baron has not been conspiring with that guy, the authorities will have to follow a money trail of $3000. Who knows where it went...