Man eats girlfriend's brain and heart.....

So where do human morals come from?
I am proud to be an Athiest, a person that thinks for myself, reasons and doesn't ignore proven scientific fact and I also don't accept what other humans tell me to do because someone told them and they swore it was fact. (for example, remember the flat world wasn't that long ago) I have never killed anyone, and try to "do unto others" but I, and only I judge me for the things I am not proud of, and don't try to blame good or bad things on someone or something else. God is a concept of a peacful and forgiving nature and comes from the human heart, not from outer space or whatever.