Gerald Posner, the author of the best-selling 1993 book “Case Closed: Lee Harvey Oswald and the Assassination of JFK,” told The Post in a phone interview on Wednesday he was “about 22,000 ...

The John F. Kennedy assassination documents released this week disclosed sensitive personal information, including Social ...

But Posner couldn’t explain one lingering mystery: Oswald fired from the 6th floor of the Book Depository building. It was a ...

Author of "Case Closed," Gerald Posner, spoke with NBC News' Gadi Schwartz about the newly-released records on the John F. Kennedy assassination case and the conspiracy that surrounds it.

James Jesus Angleton, Richard Helms and George Joannides came under scrutiny during a House Oversight subcommittee hearing Tuesday.

President Donald Trump reaffirmed his belief that Lee Harvey Oswald acted alone in the assassination of John F. Kennedy but ...

Gerald Posner, author of the best-selling 1993 book “Case Closed: Lee Harvey Oswald and the Assassination of JFK,” agreed with the assessment of the three CIA officials but disagreed with ...

Gerald Posner, author of "Case Closed," joins "Elizabeth Vargas Reports" to discuss the release of the files. More for You Trump releases classified files on JFK assassination.