It was the IRS who got Al Capone.
Capone died in Alcatraz of syphilis, not tax evasion.
Al Capone was a product of prohibition. I don’t approve of Al Capone, but the government created the crisis and “solved” it via corrupt agencies like FBI and IRS so the government must share the blame for the untoward consequences of prohibition.
So when the IRS got Al Capone the people cheered and these agencies grew in power. Do you like that?
I don’t have any sympathy for IRS and big government syncophants.