I would not kill any innocent people for my own personal gain, especially anybody in my family. Anybody who could actually enjoy life after doing that, even with 100 billion dollars, is a flat out sociopath. Nobody with a conscience would do that for any amount of money. I wouldn't be able to enjoy the 100 billion dollars after doing any of those things except the prison thing, which I would not choose. I would not throw away the next ten years of my life for any amount of money, especially when my life could be ruined permanently in that time. My legs are more important to me than money. An orgy with my family would wreck my life and theirs, so forget that one. I wouldn't consider any of those options for even two seconds.

However, short of destroying the lives of myself or the innocent and losing a substantial amount of my own life, I would do pretty much anything else for that money.