Question: does jimmy o die in sons of anarchy

Answer: Yes, James O'Phelan (Titus Welliver), better known as ``Jimmy O.,'' is the leader of the Real IRA group who sells guns to SAMCRO. Jimmy O. makes his first appearance in Season 2 to personally rectify the Hayes' betrayal of SAMCRO, since the Real IRA has long been dependent on the Sons Of Anarchy's Belfast chapter. Jimmy is generally regarded as Chibs Telford's archenemy. When the real IRA have proof of him going behind their backs, he takes Jax's son, Abel, to exchange for a safe passage back to the US. After a long hunt and search, SAMCRO finds out the Russians are hiding him. SAMCRO makes a deal to hand Jimmy over to them. When Agent Stahl gets custody of Jimmy O from SAMCRO, Chief Unser pulls them over with a ruse about Jimmy's members waiting ahead in a road block for them. With Stahl's other agents gone, Chibs & a few other members of SAMCRO show up by bus. Chibs pulls Jimmy O out of the car and slices his mouth, (in the same manner as Jimmy did him years before, scarring Chibs) and then stabs him to death.