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Nicholas Calabrese, Mafia assassin turned informant, dies at 80

Name: Nicholas Calabrese, Mafia assassin turned informant, dies at 80
Uploaded: 2023-03-13T22:39:00-0500
Duration: 27 s
Description: Calabrese was infamous as a top killer for the mafia in Chicago, who later became known for turning on his brother, Frank Calabrese Sr., in the operation Family Secrets trial in 2007.

Calabrese was infamous as a top killer for the mafia in Chicago, who later became known for turning on his brother, Frank Calabrese Sr., in the operation Family Secrets trial in 2007.