[Afallucco]

I've always said morality is subjective. Your right, there is no universal morality and views of morality differ from person to person. Many people may agree that killing is wrong because your taking a human life and denying them their right to life. It all depends on the person in general.

Also, to add to the argument that killing someone isn't harming anyone else: Emotionally hurting someone is still hurting them. Sure, like all wounds human endure they heal. Nevertheless, they were still harmed.