Assassination will retell the fateful murder of John F. Kennedy from the mob’s point of view, reimagining his death as a hit ordered by Chicago mob kingpin Sam Giancana as payback for JFK’s attempt to undermine the mob after they helped get him elected (that thread formed a big part of Oliver Stone’s JFK).The fateful murder of John F. Kennedy re-imagining his death as a hit ordered by Chicago kingpin Sam Giancana as payback for JFK's attempt to undermine the mob after they helped get him elected.