As long as Christians believe they are killing for Jesus, they don't have to obey God's commandment, "Thou shalt NOT KILL".
As long as Muslims believe they are killing for their false prophet, Mohammad, they don't have to obey God's commandment, "Thou shalt NOT KILL".
As long as the Jews believe they are killing for their god of Abraham, they don't have to obey God's commandment, "Thou shalt NOT KILL".
I take it from your posts and user name you proclaim some kind of bible expertise, which is funny. The commandment is Thou Shalt not Murder. A real expert would have known that. And of course to kill does not necessarily mean to murder. Unless in your remarkable expertise you mean that we should never defend ourselves in a personal conflict to protect our own lives, which can result in us killing another human being.
Christians and Jews turned this commandment into a way that allowed them to feel less guilty when they killed another person. So by interpreting "Thou shalt not kill" to "Thou shalt not murder", which doesn't say this in any Bibles, Christians can feel better when they go off to war to kill other people.
Thou shalt not kill means you shall not kill. When the flesh of man is killed by any means, that flesh has died and will never be used again by anyone. God claims to be the killer according to His prophecies.
Deuteronomy 32
39: "`See now that I, even I, am he, and there is no god beside me;
I kill and I make alive; I wound and I heal; and there is none that can deliver out of my hand.
This is why He says, "Thou shalt not kill". because He knows that we don't kill anyone. He's the one who created the illusion of killing to deceive us from the Truth that we're ALL saved from our wicked flesh to live forever.