Anthony Zizzo was an American mobster and a reputed member of the Chicago Outfit

Chicago Outfit

The Chicago Outfit, also known as the Chicago Syndicate or Chicago Mob and sometimes shortened to simply the Outfit, is a crime syndicate based in Chicago, Illinois, USA...

.

Zizzo disappeared after leaving his home on August 31, 2006; he was last seen outside a Melrose Park

Melrose Park, Illinois

Melrose Park is a village in Cook County, Illinois, United States. It is a "near-in" suburb of Chicago. The population was 23,171 at the 2000 census. Melrose Park has long been home to a large Italian-American population, though now it is majority Mexican-American. It was the home of Kiddieland...

 restaurant where his car was found after a missing person's report was made. He is presumed murdered, although the FBI is also considering the possibility he went into hiding.

Theories on why Zizzo may have been targeted include fears he might testify against the Outfit as well as an ongoing feud with Capo Michael Sarno

Michael Sarno

Michael Sarno is a Chicago mobster who has been identified as the alleged, current leader of the Grand Avenue street crew, in the Chicago Outfit criminal organization.- Indictments and imprisonment :...

, whom he was supervising.

At the time of his disappearance, law enforcement believed Zizzo was the underboss

Underboss

Underboss is a position within the leadership structure of Sicilian and American Mafia crime families. The underboss is second in command to the boss...

of the Chicago Outfit.