26 Worst, Most Feared, Biggest Gangsters in the World

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19. James Coonan

James Jimmy Coonan was a mobster who operated in New York. James was also a racketeer who decided to form an organized group of criminals and become a gangster. This was for the purposes of avenging his father’s death who was killed by another mobster who operated in the 1960s, Mickey Spillane.

Worst, Most Feared, Biggest Gangsters in the World

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