What would have been the point? There's nothing he can buy with $400m in stolen bitcoins that he couldn't have bought with his couple million dollars in legitim

What would have been the point? There's nothing he can buy with $400m in stolen bitcoins that he couldn't have bought with his couple million dollars in legitimate money. A mansion? A plane? 100 cars? How would he get away with it? It seems much much more likely he lost the coins due to incompetence, panicked, and tried to recover them by running a fractional reserve. Then transaction malleability happened, too many people tried to withdraw, and the jig was up.