I agree with number 1, but I take exception with "the taking of an innocent life is always wrong."
There are situations, such as collateral damage in war, when the taking of innocent life cannot be avoided, and therefore is not wrong, only tragic.
I phrased it as absolute. Obviously, it doesn't cover situations in which an innocent life is taken in other circumstances such as war, in which the loss of life is a tragedy as you rightly observed and not a sin. I read it to cover every other situation in which an innocent life is
deliberately taken, contrary to moral and human law. We need a clear dividing line to recognize what is and what is not permissable. Perhaps if our society acknowledged it, we would not be where we are today.
(Denny Crane: "Sometimes you can only look for answers from God and failing that... and Fox News".)