Every single one of them died while furiously giving off the light that resided within them and that light is then inherited by the next person where it will go on to shine with an even greater radiance. And thus people are connected together... allowing us to work towards a better tomorrow.
People fall into darkness because they have lost sight of the true nature of the light within them. Unable to find that light they flounder desperately while suffering in agony, only to give birth to tragedy. And there is no greater cause of tragedy, no greater source of darkness, than warfare.