A Criminal and an Irishman

The Inside Story of the Boston Mob-IRA Connection, by Patrick Nee, Richard Farrell and Michael Blythe.

Nee served two masters during his ascent through Boston's Mob hierarchy, for he was simultaneously deeply involved in running guns to the IRA. His gang superiors frequently warned him to back off or at least sublimate his IRA boosting to keep the heat off their primary endeavors, but Nee refused, eventually going to jail for gun-running.