As always, those were generalizations and people can fall in between some.
But
Zadok, usually the phrase "solely responsible" implies that innocent civilians will be spared (intentionally)
I put you in the camp where maybe political pressure or economic sanctions (technically non-violent, although people usually end up dying) or perhaps capturing? or trying them in absentia. Capturing will probably mean shooting so that's a gray area, but anything without direct violence. That's where I thought you were.
Duel is proposing to do nothing; "turn the other cheek" type thing. I know you want justice so I didn't put you with him.