aquinas - 'it is lawful to kill an evildoer in so far it is directed to the welfare of the whole' and its only the states responsibility, NOT individual
keeps the peace in society - or does it? may encourage murder
worship god - old testament but new testament contradicts
doesnt affect preserve innocent human life - not innocent
'lawful to kill a harmful wild beast'
catholic church says if nonlethal means are sufficient to defend and protect ... authority will limit itself. last resort