While I understand the dad's pain, the amount of egoism required to put your wishes in front of your suffering daughter is unreal. If she is rationally able to make decisions and after talking with her family/loved ones and medical professionals she still wants to die, that decision should be respected.

And the christians that think that their beliefs gives them any right to prolong the torture that other human beings are subject to... It's impolite to say what I would do to them.