This is a picture of what a 1930's Hollywood Gangster looks like. I chose this picture because in the book Monster, the gang members are nothing like this "gangster". The gangsters in Monster and guys who wear oversized shirts with either blue as their main color, or red.
THE LAST DON: "MICKEY" COHEN -- THE SUNSET KINGPIN was a ruthless gangster based in Los Angeles and part of the Jewish Mafia. He also had strong ties to the American Mafia from the 1930s through 1960s.