There is a truth, that can easily be found. It is self evident. Every honest human instinctively knows it. It is not dictated by religious or cultural bias, although it might be reinforced by them. These are the seven basic truths.
Death is Bad.
All humans while alive have the potential for good. The premature ending of another's life has the effect of destroying that potential, of preventing it from ever maturing into reality. It ends all comfort they might have given to those around them. It stops the growth to intellectual or social enlightenment. It is the finish to discovery for the individual.