Mike Heitler

A Jewish mob boss born in what is today Ukraine, Heitler is buried at Waldheim Cemetery Co. in Forest Park, Illinois.

By 1911, he had become a leading crime figure and a top lieutenant to Chicago racketeer Jacob "Mont" Tennes, later driving rival Jack Zuta out of business, with then ally Jake "Greasy Thumb" Guzik.

Reluctantly joining Capone's organization, Heitler began informing Chicago police of criminal activities after rival Guzik gained control of the organization's prostitution operations, informing Judge John H. Lyle of extortion and other illegal activities in the Four Deuces nightclub.

Heitler was soon found out and fired by Capone after he received a letter to the state's attorney office detailing his prostitution operations.

Heitler was last seen with Capone associate Lawrence "Dago" Mangano and was later found dead after a fire started in his home on April 30, 1931.