Nothing is "Right" or "Wrong" - These are just labels. Everything within existence simply "IS" - Good/bad light/dark right/wrong - these are all part of the dance and they all have their own respective place.
With that in mind, you must understand that you choose your own path in life - whatever energy you create is the kind of energy you will attract. If you spend your time killing people you will attract that kind of energy into your life, and as such you can expect your life to be very chaotic/destructive and death orientated, where as if you spend your time helping people you can expect that energy to be attracted into your life, and you will in turn find situations that can help YOU.
As far as morals are concerned, it's important to remember that in these times, morals are generally created by the society as a whole. What this means, is that all morals - from a cultural stand point - are designed to benefit the society instead of the individual. This should be painfully obvious when you look at the societies stand point on WAR - It's not OK to kill someone, unless you are killing someone for the benefit of the society, then you are a hero. Make Sense? Society is NOT your friend.
So, forget what your parents tell you, forget what your government tells you, forget what your teachers tell you, forget what your church tells you, forget what your books tell you... Some good all that bullshit has done, look where we are now as a society! We've had how many wars in the past century? How much suffering?
What do you think? Create your own morals based on what you experience and the truth that you ARE... Free your mind.
The future is in your hands... each generation reshapes the world according to their choices. What do you choose? You write your own future.