Sn. 2 - Ep. 4: A Dangerous Obsession - Code of the Secret Service

<p>John Hinckley Jr. opens fire on President Ronald Reagan. Secret Service agent Jerry Parr has to make a difficult decision to save the president&apos;s life.  It all happens in less than two seconds. An event that has been building for years. In the gunman&apos;s pocket rests a John Lennon button. In his hotel room is a copy of the Catcher in the Rye. </p>