Does anyone deny that the commandment in its original form, as it was known to Jesus, referred to murder not killing?
If not, move on.

Jim, Jesus preached love and forgiveness.
Many Christians feel they must be pacifists to be true followers.
Most do not.
Jesus never spoke against the law allowing someone to be stoned to death or otherwise executed.
He never spoke against people who were soldiers, and neither did John the Baptist or Paul.