I am aware that one is allowed to use lethal force to defend one’s life against a malicious attacker, if there is no other way to defend oneself. (For example if someone wields a weapon with clear intent to kill you.)
The question is: “If someone unknowingly and unintentionally puts you into mortal danger, how far can you go in defending your life”? If there is no other way, are you allowed to use lethal force? I looked at the catechism, but did not find any guidelines.
Thank you for your time.