Can't really say, DeN. The basic facts of Rothstein's life are well known, since he was a very public figure in the Twenties and achieved notoriety when F. Scott Fitzgerald portrayed him as "Meyer Wolfsheim, the man who fixed the 1919 World Series" in The Great Gatsby. The value of the book, IMO, is the author's delving into the details of Rothstein's crimes and his relations with criminal associates. It's interesting stuff, but I can't vouch for its accuracy. But I have no reason to doubt it.