I think you find that games do not in fact actually kill people.
I agree that guns do kill people but this is due to the fact that they fire bits of lead at the spead of sound.
but games on the other hand are not exactly classed as a weapon that can be used to kill.
but seriously i would say that a vast majority of the world play computer games now days and watch violent films but its still remains a fraction of people who feel the need to kill.
I beleive that games contribute in no way to a persons real world actions.
if you cant dertermine whats right and wrong then i dont think quitting gaming would prevent you from wanting to kill someone.