Share 'Selfie: UFC champ Conor McGregor’s link to slain Irish gangster'

By David Amoruso Conor McGregor’s nickname may be “The Notorious” but that’s because the UFC champion has a big mouth and is an impressive fighter, not because he has strong links to organized crime. Talk about McGregor’s links to the underworld comes at the heels of the killing of Irish gangster David Byrne, who was murdered by hitmen at the weigh-in of a boxing event at the Regency Hotel in Dub…