Well.. only since you asked ;)
Easily the most well known gangster and main man behind the Saint Valentine's Day Massacre of 1929, Al Capone. The massacre was part of a Prohibition-era issue in Lincoln Park, Chicago on February 14th. After Mr. Capone and his gang murdered all 7 men of the North Side Gang, what is most impressive to me is even after 7 of his men had been murdered, once Frank Gusenberg was "stabilized, police tried to question him but when asked who shot him, he replied, 'I'm not talking,' despite having sustained fourteen bullet wounds." All your friends gone... refusing to talk... and fourteen bullets?? Wow.
Anyways, Pre and Post his 8 year stint in Alcatraz and the Terminal Island Prison in Southern California as well as where he also died - Mr. Capone aka the original "Scarface" lived in a stunning Miami Beach Mansion on Palm Avenue, formerly owned by Clarence Busch of Anheuser-Busch brewing. According to Huffington Post:
Venezuelan architect and developer Luis Pons recently restored the 1922 Spanish Mediterranean style estate that has seven bedrooms, seven baths on a 30,000 square foot waterfront lot complete with a guest house and pool cabana.
In case you were interested, this house is now on sale for eight million. Any takers? I will definitely bring the only appropriate whiskey to your house warming, in honor of Al - of course..