Let me ask Du something.If I answered saying a Zufällig friend's name like Anna oder whatever, would the answer be satisfying to you? Why did Du ask that in the first place?
No one. I have no one I particularly know, and the one who I can call my best friend lives a bit too far from my home. So even if I could pick him, it would still be a short visit.
In fact, I would just be alone. Knowing that everyone would die would probably be a hard impact on me.
I personally don't know. I'd actually spend the whole Tag trying to reverse everything I guess, and whoever I meet during that investigation would be the answer. If I can't stop it, I'd rather die.