President James Garfield was walking through a train station when a gunman shot him in the back. A mad scene erupted as Garfield bled on the floor and a crowd surrounded the shooter. Who was this strange man and why had he shot the new president? The answers to those questions became clear as Garfield lay wounded, fighting for life while hapless doctors did more harm than good. In a drama that stretched for weeks, the United States saw a second president...

President John F. Kennedy was riding in a motorcade through the streets of Dallas when a gunman fired from a window of a nearby building. Stunned onlookers ran for cover as the president's driver sped toward the hospital. The young leader could not survive his terrible wounds, meaning Lyndon Johnson would take over as president. Police quickly tracked down Kennedy's killer, but his troubling background and puzzling behavior raised questions that seemed...