To slip back to the derailed portion of the thread, there is a sense of how can two people disagree and one be justified. In that, there is either a moral relativsm where people decide the issues of right and wrong or there is established, as I believe, a moral foundation by God by which to guide and judge our actions. If you believe in a moral foundation of like faith then it is a matter of interpretation.
It is disturbing when death of a person is the focus and cause or justification allows multiple conflicting causes to be likened to one another for either justification or to be refudiated.
Thou shalt not kill. Clearly, historically and by the meaning of the words of most original text kill means murder. If you are a moral relativist you can say, among others of your like, that killing is killing regardless of the cause and make it mean whatever you like. If that is one's leaning, please do not attempt to say you are of my faith when that is not what the teachings of my faith are founded on....or worse attempt to define my faith for me as that is clearly an attempt to manipulate without the understanding of my faith. "Interpretation" is claimed many times when one wants to deny teaching and guidance given to fit that person's desire of what they would like something to be and at the same time drum up approval from someone for justification outside of guidance.
Is a man justified to kill to protect his family...certainly he is and at the same time it is not murder. Many who profess to know what Christians believe or who would like to believe something different to solve some personal maladjustment will say you are damned to kill to protect your family because of "Thou shalt not kill." Clearly this is wrong thinking and a misrepresentation of the meaning of the guidance "Thou shalt not kill." Yes a faith of Chritianity can disagree by interpretation but only one interpretation is right...let the brother who believes killing is murder go his own way but for myself and the vast majority of Chritianity prior to the 60's enlightenment it is worthy to defend my family and a man should lay down his life as necessary for his wife and children.
The last 50 years of love, peace and forgiveness focus above all has led, I believe to a perverted Gospel. I leave this thread with the story of Noah and the Ark. God showed his love, peace and forgiveness to Noah and his family. Perhaps the Ark should have been named "God is Love". That would have blessed all those other people, wouldn't it? You know which ones if you know the Bible...the ones God killed in The Flood because they were wicked and evil.