Jake “Greasy Thumb” Guzik was one of the Chicago Outfit’s most trusted financial minds, yet numerous accounts report that he rarely, if ever, carried a firearm. Rather than relying on violence himself, Guzik earned the unwavering loyalty and protection of Outfit leaders like Johnny Torrio and Al Capone through his honesty, financial expertise, and discretion. His value to the organization was so great that crossing Guzik often meant answering to someone far more dangerous.