Oh I think it's a combination of brain and body, that's the
   thing. I don't think we *can* _really_ separate the two, not
   distinctly.

   The body influences the brain which influences the body which
   influences the brain which influences the body which influences
   the brain which influences the body... etc.

   You could stick the brain in front and I stick the body in
   front, but to me, it amounts to more or less the same idea. By
   the time we're old enough to be on trial for killing someone,
   the two are entirely intertwined imho.