The smiling gregarious O'Dwyer, Irish to his toes, walked a policeman's beat while studying law and became the crusading district attorney who broke up Murder Inc. Cotsello, the son of Calabrian peasants, turned early to crime in the streets of East Harlem, and never turned back. He and other young hoods--Lucky Luciano, Meyer Lansky, Bugsy Siegel, Joe Adonis--built a national crime network that extended from numbers to narcotics, from New...