The leader of the Real IRA group, Jimmy O'Phelan (Titus Welliver), had a long history with SAMCRO member Chibs (Tommy Flanagan) -- and by "long history" we mean he kicked Chibs out of the Real IRA, banished him from Ireland, stole his wife and scarred up his face. After Jimmy tried to kill SAMCRO members on more than one occasion, and then used Jax's son as leverage to get safe passage out of Ireland, he was eventually betrayed by the Russians and handed over to SAMCRO. Chibs got to have his revenge, carving a Glasgow Smile onto his face and then stabbing him to death.
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