A little more on this charcter who runs Muddy Waters.

Mr Block divides his time between Hong Kong and America but doesn't like to disclose his location because he has received death threats. He refuses to share any details about his business model, including whether he has outside investors. “All people need to know is that I have a clear conflict of interest,” he says, referring to the short positions he takes in the firms he researches.

Muddy Waters has no full-time employees except for Mr Block, and hires contractors to help with research. He probably sells subscriptions to his research reports to hedge funds so they can take short positions in the stocks Muddy Waters will target before he releases those reports to the public. But no one admits to knowing which funds are Mr Block's clients

A real upstanding character.

Source: http://www.economist.com/node/18929130