Since President John F. Kennedy's 1963 murder in Dallas, medical examiner and lawyer Dr. Cyril Wecht was initially inclined to accept the official theory that one person alone was responsible for the crime. But as Wecht delved into the evidence with boundless curiosity and unprecedented access, he came to understand that America had, instead, suffered a coup d'etat at the hands of rogue elements within our own government. Nobody else has...