On May 12, 1982, Father Juan María Fernández y Krohn, a priest of the Society of St. Pius X, attacked Pope John Paul II with a bayonet during the pope’s visit to Fatima.
There is an interesting post by Father Cekada who knew the assassin and even belonged to the same clique of "hard-liners" in the Society. Father Krohn was wound up pretty tight, like a lot of Sedevecantists, but anyhow.
Krohn accused Archbishop Lefebvre of being too soft during the trial.
The question now is, with Pope Francis in Portugal, does Krohn still harbour these intense ideas about religion, and if so, will he be in Portugal this weekend to see Francis? Krohn was banned from Portugal after serving three years of a six year sentence and moved to Belgium where he practices law.