William Reymond is a journalist and writer of several investigations about John F. Kennedy: JFK, Autopsy of a State Crime (JFK, Autopsie d'un Crime d'Etat), JFK, The Last Witness (JFK, le Dernier Témoin, with co-author Billie Sol Estes).He is co-writer (with Yves Simoneau) for movie Assassin's Creed: Lineage that consisted of 3 series filmed as prequel to the video game 'Assassin's Creed II.