Filmmaker Oliver Stone called on Congress to reopen an investigation into the assassination of former President John F. Kennedy during a novel House hearing Tuesday, which featured witnesses who cast doubt on whether Lee Harvey Oswald was responsible.

“I ask the Committee to reopen what the Warren Commission failed miserably to complete. I ask you in good faith … to reinvestigate the assassination of President Kennedy from the scene of the crime to the courtroom,” Stone, filmmaker of the 1991 movie JFK, told a House Oversight subcommittee examining newly declassified government documents on JFK’s death.