So what did the witnesses tell lawmakers? Testimony from Stone and authors Jefferson Morley and James DiEugenio largely centered around criticism of the CIA and other federal officials in the decades since Kennedy's assassination.

American filmmaker Oliver Stone said Tuesday that the assassination of former President John F. Kennedy is “a cold case with a lot of clues” after he testified before Congress earlier in the day.

Oliver Stone's "JFK" was nominated for eight Oscars and grossed more than $200 million but was also dogged by questions about its historical accuracy.

American filmmaker Oliver Stone testified Tuesday before a House committee on the release of new documents related to the assassination of John F. Kennedy Jr. NewsNation’s Ross Coulthart agrees with Stone’s claims that it was a clear motive behind Kennedy’s death and discusses the possibility of a “cover-up” for the planner of the shooting.

Watch the full House Hearing On Declassification Of JFK Assassination Files. Oliver Stone, an Oscar-winning filmmaker, was among the the people who testified. Stone directed the 1991 film "JFK" portrayed Kennedy’s murder as the work of a government conspiracy.

Oscar-winning director Oliver Stone testified before a congressional task force on the assassination of President John F. Kennedy. Stone directed the 1991 film "JFK."

Oscar-winning filmmaker Oliver Stone is set to testify to Congress about thousands of newly released government documents surrounding the assassination of President John F. Kennedy

The assassination of former President John F. Kennedy will take center stage at a closely watched House hearing on Tuesday.

Oliver Stone called for the reopening of the investigation into the assassination of John F. Kennedy, as the director noted the impact that his 1991 movie JFK had on the release of records. “I ask the committee to reopen what the Warren Commission failed miserably to complete,