Wow. It was a "Yes" or "No" question. Do you believe that an innocent person has a right to life?
For those who believe that innocent humans do not have a right to life, transcendent or otherwise, then you must also believe that no prohibition to killing an innocent human being exists; only inhibitions, ie., my life might be less than full if I kill and get caught -- a might make right morality. No?
I explained that everyone has this right to life as a generally accepted reciprocal agreement. And I explained that creatures other than ourselves who are not in a position to make this bargain do not posses it.
If there is no agreement, then the right does not exist (so it's no good telling a lion that you won't harm him). And if there are people intent on killing you then they have removed themselves from this agreement so they in turn have no right to life. It's the very basis of the
concept of self defence.
And going back to the reason we generally agree to this arrangement, it could originally be conceived of as a self defence mechanism - I don't want to get hurt so I promise I won't hurt you. But when we developed a justice system then there were additional reasons not to break the contract. You would be punished, not by the individual you harmed, or by their immediate friends or family, but by society itself - as a means to maintain the stability of the society. So this right is then extended from being an agreement between individuals to being encoded in the social contract. So exempting yourself from the contract means that you have lost the right to have it applied to yourself. Hence capital punishment.
So is anyone justified in individually breaking this contract? Well, they can convince themselves that they won't be caught doing so. But that doesn't justify it. Or they can convince themselves that the people they kill don't deserve to be part of this contract (treating them as animals for example). But that doesn't justify it either.
A better reason would be the one I suggested in my first post -
retaliate first. That is, there is very good reason to believe that someone is going to break the contract, putting yourself, or others that you care about, in danger. Naturally there is a problem in justifying your belief. In some cases it's blatantly obvious - especially in the heat of the moment. But others, when the retaliation is more 'cold blooded', less so.
And then there's the really difficult one -
exempting yourself from the contract for the greater good. And this would obviously include acts such as bombing civilians to break an enemies morale and thus shortening a war or killing everyone to prevent acts of revenge further down the track (some read Samuel 1:15 as an example of this). It's the Trolley Problem writ large.
So is there a 'right to life'? Yes, because we have agreed it to be so. Is it absolute? No, it depends on the situation. Can we always be justified in claiming it doesn't exist in those situations? Well, all I can say is...good luck on getting agreement.