Killing is pretentious, as is condemning it. I have yet to hear a convincing argument that there is such thing as right or wrong.
As a whole we are immature. The act of killing and placement of values on such an act are an attempt at control. Control is the only way we can deal with the silence of the universe, a desperate attempt to give meaning. A need which has evolved from the development of language. Nothing means anything
So here's a question: Why do we possess the ability to kill?