He was the man who helped the Feds nail Al Capone on tax evasion charges. But his legacy is greater than that. Find out how, on Backstory.See Privacy Policy at <a href="https://art19.com/privacy" rel="noopener noreferrer" target="_blank">https://art19.com/privacy</a> and California Privacy Notice at <a href="https://art19.com/privacy#do-not-sell-my-info" rel="noopener noreferrer" target="_blank">https://art19.com/privacy#do-not-sell-my-info</a>.

He was the man who helped the Feds nail Al Capone on tax evasion charges. But his legacy is greater than that. Find out how, on Backstory. See Privacy Policy at https://art19.com/privacy and California Privacy Notice at https://art19.com/privacy#do-not-sell-my-info.

He was the man who helped the Feds nail Al Capone on tax evasion charges. But his legacy is greater than that. Find out how, on Backstory.See Privacy Policy at <a href="https://art19.com/privacy" rel="noopener noreferrer">https://art19.com/privacy</a> and California Privacy Notice at <a href="https://art19.com/privacy#do-not-sell-my-info" rel="noopener noreferrer">https://art19.com/privacy#do-not-sell-my-info</a>.

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Explore the BACKSTORY behind some of the most intriguing tales in history, culture, religion and science from Chicago and beyond.&nbsp;

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Explore the BACKSTORY behind some of the most intriguing tales in history, culture, religion and science from Chicago and beyond. 

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Fast Eddie: The man who helped convict Al Capone, and more...

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