Are you arguing that the state’s execution of an innocent person is not an evil act?
I am unhappy with the way you use terms. Knocking into someone and causing him to spill coffee on himself might qualify as an evil act, but bumping someone accidentally and doing it deliberately are entirely different actions, a difference your use of the term disguises entirely.
“Evil act” implies a morally evil action; a sin. That you use it to describe physical loss (hurricanes…spilled coffee) is a source of confusion, and the fact that you deliberately use it without qualification is disturbing.
So, to answer your question: I do not consider the inadvertent execution of an innocent person a moral evil. There is no moral question involved.
If not then are you arguing that the state’s agents are not causally responsible for the intrinsically evil act of directly killing an innocent person?
Of course the state is causally responsible for the death. What I reject is the notion that (a) this represents a moral failure, and (b) that the inadvertence is intrinsically evil.
If so then are you arguing that, therefore, Catholics can still maintain the death penalty?
Yes, of course.
Where are you trying to go with this notion of distinguishing physical vs. moral evil?
It is necessary to distinguish what is accidental from what is intentional. It would be wrong to label someone an “evildoer” who inadvertently causes injury to another person, yet that is precisely where your argument leads.
For in the moral, as in the physical order, the species is not constituted by that which is accidental. Now, in the moral order, the essential is that which is intended, and that which results beside the intention, is, as it were, accidental. (Aquinas ST II-II 39,1)
We have Aquinas and the catechism teaching that invincible ignorance …
Their use of that phrase has no relationship to the way you use it. There are certain actions that are forbidden, where it can legitimately be said “He should have known better”. That assuredly is not the case in a trial where in fact the truth cannot be completely known by anyone. Natural Law may be written on our hearts, but the knowledge of John Smith’s guilt in the murder of Mary Jones is not.
The teaching is that the guilt of the prisoner must be “fully” determined before capital punishment may be morally employed. I submit that that condition cannot have been met in all concrete cases in which the state executed an innocent person.
This debate would have been much more straightforward had you started here. This is simply an opinion; it is not a moral or theological argument based on church doctrines.