If you had to kill someone it would be

This is a simple question.
If you had to make the choice of someone to kill to allow everyone to live, or yourself, or whatever…
Basicly! If you had no choice but choose a person to kill, the person would just show up dead, no work from you, no pain, just would go to sleep and not wake up…

Who would that person be?

And you can use fictional characters also…
Just don’t be ofensive or turn this into a flame war…
Please!