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Case Description
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Vincenzo 'Big Jim' Colosimo, an Italian-American crime boss, was assassinated on May 11, 1920, at the age of 42 in Chicago, Illinois. Colosimo, also known as 'Diamond Jim' for his penchant for wearing diamond-studded jewelry, was a prominent figure in the Chicago underworld. He built a criminal empire based on prostitution, gambling, and racketeering, becoming a significant player in the city's vice district. His rise to power was facilitated by his connections with influential political figures ...Read More
Links to Additional Sources (5)
See any mistakes?Victim Details
Vincenzo Big Jim Colosimo
Male
Other Race
Chicago
IL
1920-05-11
42
Vincenzo
Big Jim Colosimo
11/23/2025
Forum Posts (3)
I can't stop thinking about Dale Winter and what she must have gone through after Big Jim's murder. ... ...Read More
11/12/2024
11/12/2024
Has anyone else thought about the tragic timing of Big Jim's assassination? Just three weeks after m... ...Read More
08/17/2024
08/17/2024
I’ve always been intrigued by the dynamics between Johnny Torrio and Big Jim Colosimo, especially ... ...Read More
10/03/2023
10/03/2023
