He has stated multiple times that he has savings in BTC. This implies he still considers them valuable. So, why would he sell them? He's not stupid enough to blow his cover that way if he was the thief.
You mean the gold coin, yea its about $1500 in gold :-) We can't really check if he sold or not the bitcoins, so somewhat a moot point. He made a lot of mistakes already, thief or not he's already implicated up to his ears in this crime.