Johnny Torrio
According to the book After Capone, Chicago mobster Johnny Torrio and partner veteran brewing magnate Joseph Stenson (of Stenson Brewing Company) purchased Manhattan in 1919. Not long after the purchase, pal Louis Greenberg (finance man for Al Capone) assumed management responsibilities and held a significant stock position in the brewery. Greenberg was seen as a perfect fit given his experience in the booze businesses and as a money-man.