I think you people need to learn about Nihilism, thats the word I was looking for earlier. Maybe it will help you start thinking on your own rather than relying on others to teach how to live your life.
Nihilism is incompatable with human nature though. The only nihilists around, if you can even call them that, are sick people. People who have proverbally had the life beaten out of them. So although the basic tenets of nihilism are true it's not the end of the story. If you call yourself a nihilist you are showing that you are in fact not a nihilist. There is an (emotional) importance to you (even if you don't realize it on a cognitive level) for talking about nihilism, which negates nihilism in your life.
"I find it important to note that nothing in life is important".
I would guess that most people who claim to be nihilists are really just shutting themselves off from a pain they felt due to caring too much. A rationalisation of feelings, or lack there of, as a result of a defense mechanism.
More specifically to this thread there is moral nihilism, which I find to be truth. There are no morals values compatable with objective reality. However that only talks about morals on a philosophical level and completely ignores morality on a biological basis. In that sense morality seems to be a combination of perceiving things as good (positive for your survivial) and bad (negative for your survival) combined with an ever-present need for control (if Casey Anthony had been found guilty that need for control would subside and most people would no longer care about the murdered child, very few actually did in the first place ... justice would have been done, the world would have been "right" again). Can you talk about morality in the way that Christians do? With good and bad being cemented as divine justice, unchangeable. You can't. But everyone adheres to certain believes and you can discuss things within those believes. For example every single person I know believes that killing is immoral so it's only a natual extention of that believe that eating meat is immoral. Outside of that, you can't talk about it as immoral behavior. I don't think many people would like to live "outside" of that though and as I mentioned earlier it's impossible to genuiely live by moral nihilism (you would be suppressing your natural sense of morality on a constant basis).
In the end it comes down to emotions. It can be difficult to talk about what a "normal" person is but with so many specimens around and our history we can draw some objective conclusions about what a normal person is. To give a definition, a normal person is a physically and mentally healthy, well-adjusted individual. One of those
normal attributes would be an emotional connection to other individuals and mankind as a whole. Another would be empathy (not to be mistaken with sympathy). With those two attributes most people will come to the same conclusion about the morality of killing another person and the people who don't most likely have an emotional investment in believing otherwise. I wouldn't be able to objectively convince a sociopath of the immorality of hurting people if they chose to do so but for the most part I just feel a certain way and that's fine by me.