John Oliver and HBO’s Last Week Tonight had a First Amendment right to call coal king Robert Murray a “geriatric Dr. Evil” and ridicule his Murray Energy Corporation in a scathing segment last June, says the West Virginia judge presiding over Murray’s defamation lawsuit. Judge Jeffrey Cramer of West Virginia’s second judicial circuit notified attorneys on both sides of the dispute this week that HBO’s motion to dismiss the suit would be granted. Ruled Cramer: “I find the…