CHICAGO -- If Oscar nominee "The Irishman" was embodied as a Chicago mobster, he would already have been killed for making too many mistakes. The Chicago Outfit has a long and bloody history of ...

When Al Capone was sent to prison for tax evasion in 1931, many wondered who could fill the void left by Chicago’s most infamous mob boss. The answer came in the form of Frank Nitti, Capone’s trusted ...

The question of who killed Sam Giancana, an assassination long considered one of Chicago's biggest hits, has long gone unanswered -- until now. The answer behind his assassination is the Chicago ...

Experts told NBC 5 Investigates that while there may be some remnants of the mob still present in the Chicago area, it's not what it used to be. "The FBI here in Chicago still considers the Outfit ...

“Who killed Momo” is the Chicago Outfit’s last family secret. NBC 5 Investigates dug into a case that has been dormant and gathering dust. We spoke with men once on the inside of the mob and those who ...

Salvatore (Sam) Giancana headed the Chicago Outfit during the late 1950s and 1960s. Nicknamed “Mooney” or “Momo” for his temper, the Chicago native rose from a juvenile delinquent to the crime ...