In perennially corrupt countries like Russia and China, political stars and successful billionaires can fall at even more dizzying speeds than their rises. Case in point.
The question is not what he did nor the scope of corruption – insider trading, money laundering, or else.
When China decides to prosecute one of its elites, the question should be: who did he piss off (or failed to pay up to), who is taking his place at the gambling tables, who else has (forgotten to) greased the pole all the way up, and which one of his protectors in the mandarin inner circle has fallen out of favour with the man calling the shots?
At this level of wealth, this stuff goes all the way to the top.