No one knows what happen to that pizza delivery boy which sells pizza for 10k bitcoin which is already a lot. If he knows the current price now maybe hes one of the richest on bitcoin world well no one knows what happen to him if he possess still the huge amount of bitcoin.
Far I know, the guy sent the bitcoin to another dude buy the pizza with a creditcard or something like that... So the "rich" guy it's not the pizza delivery but the guy from the credit card...
Maybe he did a giveaway?

It could just be that the person with the credit card passed his Bitcoin along the chain and bought something, or maybe he really was lucky and made a lot of money holding on to that 10k Bitcoin. I personally think he wasn't lucky enough to do that, but you never know for sure. If he did manage to make a ton off of that, though, good for him.