Many feel that the bright lights of the future of the United States were dimmed on June 5, 1968 ...

 Many feel that the bright lights of the future of the United States were dimmed on June 5, 1968 with the assassination of U.S. Senator, and presidential hopeful Robert F. Kennedy. The accused gunman was immediately captured at the scene in Los Angeles, California. Who was convicted and sent to prison for committing the crime?