The question is, just how difficult will it be for him to cash out?
The word is he already cashed out, at least a big part... straight to MtGox lol
Can you quote a source please? I'm trying to follow this story, but all I'm getting are vague claims based on nothing. Thank you very much

If you really wanted to follow this story you would go to the place where it happened and read about it there instead of staying here asking questions.
That was what I did when I wanted to know more. Not going to quote or link anything here, that's for sure, but I know what I read in a thread where someone is following some of the scammer bitcoin addresses, and that was that he sent some thousands of coins to MtGox.