This IS a serious answer... so yeah, I'm not kidding, this is what I would do.
I would chose the first option. The reason is because obviously I'd have to be given some way or weapon in which to end the life of another, otherwise I wouldn't be able to kill ANYbody, being female and not exactly full of strength.
This would therefore cause the psycho to also BECOME a hostage to
me, in which he would be the first one I'd choose to kill. Then I would change my mind once he'ss dead that I would kill no one else.
The courts would therefore consider my case one of self-defense despite taking the life of another.
*shrug*
I dunno. Your making my brain bulge, its not very used to this.
Interesting situation though.