Question: The Cohen crime family, or the Siegel crime syndicate, was an Italian-American Mafia / Jewish Mafia crime family created by which New York Jewish American mobster, and was known as one of the most "infamous and feared gangsters of his day"?
Sentence (from "Bugsy Siegel"): Siegel was known as one of the most "infamous and feared gangsters of his day".
Relevant evidence: No