Office Closets

What is another expression for organised crime in America of the 20s?

I have to do something for school (history) on organised crime in the 1920s in the US. The problem I'm having is that when I search for this term on google I cannot find much. Therefore does anyone know another term I could look for instead of organised crime in the America of the 1920s?

Public Comments

1. 1920s... I think those were the times with Mobsters? Like Al Capone or whatever... But yeah, I think thats the era of Mobs, which were like gangs, but more... Casinos rather than pimps and stuff.
2. Murder, Inc., Murder Incorporated or Brownsville Boys was the name given by the press for an organized crime group in the 1920s to 1940s that carried out hundreds of murders on behalf of the mob.