He wants to make what right, specifically?  He asked for money for a tangible item.  Money exchanged hands, but a tangible item has not yet been exchanged.  It doesn't matter at all what happens after the fact.  You have him BTC in exchange for a tangible item.  If he does not give it, he is a theif.  Period.  There should be NO QUESTION about what happens next.  He should give you the item you paid for and he should continue to try and get his money back from the theif that took HIS money.  But at this point it has nothing at all to do with the people that gave him money in exchange for product.