Dallas: Lone Assassin or Pawn

The deadly bullets spray President John F. Kennedy's black limousine convertible as it moves slowly past Dealey Plaza in Dallas, Texas, on November 22, 1963. The shooting quickly rivets the nation into shock, and news of the tragedy spreads simultaneously around the world.

In Moscow, officials are nervous, especially when they discover the Americans have arrested former US Marine Lee Harvey Oswald for the crime-a man who had earlier defected to the Soviet Union and lived there with immunity...