Imad Mughniyeah was a Lebanese terrorist responsible for more American deaths than any other individual – until 9/11. He is now the subject of a 4-part Showtime dramatic series that debuts on May 19. We talk with Greg Barker who directed and co-wrote this unusual series that tells from American, Israeli and Lebanese perspectives the story of the man who was behind many suicide bombings, hijackings and murders in the Middle East and who evaded capture for two decades until he was killed by a car bomb in Syria. The drama also weaves in first-hand, real-life interviews with prominent officials from the CIA and Mossad.