Rumors of a conspiracy started as soon as Lee Harvey Oswald assassinated President John F. Kennedy and were re-doubled when Jack Ruby murdered Oswald in the heavily guarded basement of Dallas police headquarters. This is a story by a reporter who was in that headquarters basement and then worked on the final formal acts of the assassination chronology -- Ruby’s murder trial and the investigation by the Warren Commission. Unlike the Commission’s tedious, detached and disorganized report, “Accidental Assassin”: Jack Ruby and 4 minutes in Dallas” tells what it was like during those tumultuous times. It follows Ruby on his journey to the murder scene and dismisses the thought that he might have been part of a conspiracy.