Here's at least one book on him: The Mastermind: Drugs. Empire. Murder. Betrayal. by Evan Ratliff.
Another is: Hunting LeRoux: The Inside Story of the DEA Takedown of a Criminal Genius and His Empire by Elaine Shannon.
Michael Mann has the rights to turn Hunting LeRoux into a film. He did Heat, Ali and Collateral (probably one of my favorite movies). Unfortunately, he also did Blackhat.