28 West Broadway, South Boston
Now the site of another numerically inclined bar, The Six House, you can find the old location of Triple O's directly across from the Broadway station on the Red Line.
Triple O's was owned by Kevin P. O'Neil, who pleaded guilty in 2000 to racketeering, money laundering, and extortion charges. In 1990 Triple O's was raided by the feds, searching for evidence to nail Bulger on charges of trafficking, money laundering, extortion, bookmaking, illegal liquor sales, and tax evasion. In 2000, O'Neil agreed to give up his share of the bar and to cooperate in the investigation of Bulger and Flemmi.