'80s Night at the Conspiracy Ballroom

First we learned the Communists really were behind the 1981 plot to kill the pope. Now the Italian authorities are charging four people with the murder of the financier Roberto Calvi, found dead under extremely unusual circumstances in 1982. Conspiracy fans will recall that Calvi was at the heart of the Vatican banking scandal, and that he was also a member of the renegade Masonic lodge P2, name-checked briefly in one of the least comprehensible scenes of The Godfather Part III.