Along with those examples see... Hitler, Stalin, Mao, Pol Pot, Darfur, Rwanda etc.
- philosophically speaking, murder is in the nature of a lot of human beings with or without religion or God.
I think excon's point is well taken and am glad that somehow, whether by religion, or by parental teaching, or something innate in our consciousness, most of us know murder is wrong.
Legally in the USA it is wrong but there is the death penalty and abortion?
How about in war ?
How about in self defense?