Booth was a"wack job",Guiteau was a "nut case",and pushed over the edge by Garfield's son's statements to Guiteau! Oswald was not too stable either.I don't think Leon Z.was all there either.Take a good look at the attempt on R.R.,but Brady paid the price.So-on and so-on!I tend to think that all of the attemped,and Assassins have had mental issues in history.