Lone gunman theory

The Lone gunman theory (or "lone nut theory") is the nickname given to the theory that United States President John F. Kennedy was assassinated by a "lone gunman" named Lee Harvey Oswald, and not part of a larger conspiracy.

This was the official explanation of the John F. Kennedy assassination, as determined by a U.S. government task force called the Warren Commission. The Commission argued that Oswald was a disturbed, lonely man, whose radical political views and depression had led him to shoot the President.

In the late 1970s, the House Select Committee on Assassinations reported that Kennedy was "probably" killed by a conspiracy of some sort.