That's it, let him sell if he really has it.
So maybe he has it?

I'm confused now. We know is a scammer and is not satoshi, so how can he have that many bitcoin?
Don't be confused, it isn't really a big deal if he has it or not. He can sell at his own will because if he really has it, then who are we to stop him. I'm not knowledgeable about his bitcoin career but maybe he's one of the miners and/or bought during the early days.
Believe in the fundamentals of bitcoin. He can FUD all he wants, but the price will be strong. If he sells, then there is more opportunity for us to have bitcoin at a lower price. The price will recover from it.
Right, there are investors who are waiting to buy at the dip so if it's real that he's about to dump massive bitcoin then expect that it will rise afterwards.