If Oscar nominee "The Irishman" was embodied as a Chicago mobster, he would already have been killed for making too many mistakes.

Chicago mob enforcer Mario Rainone has spent about half of his life behind bars for various Chicago Outfit rackets from violence to extortion.

“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 ...

The Chicago Outfit was a force in the city for decades, believed to be behind hundreds of unsolved murders, but is the mob still active today?

The Mob Museum – officially known as the National Museum of Organized Crime & Law Enforcement – is offering details for visitors.