Investigator Dave O'Brien was granted rare access to the so-called 'Oswald' window. By standing in the shoes of the real assassin in the Book Depository, in essence looking over his shoulder, what the author saw was shocking and may change what the history books say about the JFK assassination. O'Brien's Through the Oswald Window cuts through the maze of information and misinformation out there to answer not only why was JFK assassinated, but also who assassinated JFK, which continues to haunt the Kennedy family to this day.