This, I can tell you: no world is perfect, and there is no price to pay for lives lost.
It is not a question of who deserves what, but as to how each individual comes to a decision -- little grains coming together to make a whole.
You can never make it up to those who have passed away. Anything you do now is not for them, but for yourself so as you can try to appease the regret and pain you feel.