I honestly don't think I could do it. Unless it was one of those situations that could be turned around against me. Then, I'd do it in a heart beat. Of course, I'd have to use a nice chunk of that money for some good therapy. Lol.
I don't know...if it was just some random person and not someone I knew, I might be able to do it, it's hard to say. 1 billion dollars is a lot of money and it would change my whole family's life. Now, killing someone for 1 billion dollars? No, I wouldn't be able to do that. And I wouldn't be able to watch a child die and not do anything about it.