Yes, I support killing tyrants.
I go back to texts from BC. "If a man comes through your window at night to kill you, rise up and kill him". And David slaying Goliath. And many other instances.
On the other hand... I have to ask if the killing is just and moral.
If it were war, my side against the tyrant, horde against horde, in bloody clash, would I be justified in taking the killing blow against the tyrant. If so, it's just.
On the other hand... who decides? What is tyrrany? Those questions must be considered, and weighed using the guidance of prayer, the Torah, the Bible, and the ancient commentaries that have withstood the test of time.
De Praeceptis (Nolin, 1938, Vol II, pg 337) gives some pretty good and well thought out guidance in the section De bello.
And the latin is pretty easy to read.
/johnny
"My question" wasn't really my question, it was just the title of the article by Fr. Saunders. I don't have a problem with tyrannicide. Neither did St. Thomas Aquinas, and that's good enough for me.