Isn't there too much focus on just the 9000 BTC? It seems to me the bigger issue is the suspicion that Baron is also the person who stole >$45000 from MtGox by exploiting the site's LR code.
Sure, but Baron is unable to prove that he sent 3000$ worth of LibertyReserve money to buy 9000 BTC. It's very easy to prove, all he has to do is post transaction batch, date and account numbers and we can go to libertyreserve and automatically validate that the transactions did in fact occured. It screams scammer in my ears.
Now I'm not sure why he would be stupid enough to first steal 45 000$ and then deposit it back, but this isn't anything we can prove/disprove, it's a case mtgox has to deal with. All we know is that such transactions did occour. Also, it wasn't mentioned anywhere how much money was stolen from mtgox as far as I know. It would make more sense if Baron pulled off several libertyreserve scams and then deposited into mtgox while thinking he would be safe by using multiple IPs but getting busted by his lack of knowledge about bitcoin and how his transactions can be traced.