I would kill you, your entire family and everyone who was dear to YOU - the one who wanted to get my family killed. Assassin is a hired gun.
Am I to understand that you would give the assassin - the person who committed the act of violence - a free pass, but you would kill innocent people? When you say "entire family and everyone who was dear to YOU," I assume you are including children, grandparents, etc.
That is shameful. If that is your meaning, your response betrays you for a thug.