Sirhan Sirhan was the man accused of shooting Robert F. Kennedy. Sirhan Sirhan himself in April of 2011 under hypnosis has claimed according to this article:
Sirhan now claims he thought he was at a firing range – and saw circles with targets before his eyes. His lawyers say he never planned to kill Kennedy; another gunman did that, with Sirhan as a diversion. The parole board denied Sirhan – again – last month.(Source)