lawyers can use her mental health to get her a good deal
coz living with (- he husband disappereance and geting acused to murder him not knowing if is actually dead or not - Finding out he was cheating on her and living with an other woman ) can really get ur mental health down
I think I understand a little bit of the angle that you are going to, probably that she was mentally derailed at the time she shot the husband but to that effect, they will examine her on her mental health before the shooting, at the time of shooting and would put her on close examination to assertain if she is okay or not and most likely they would find out she is fine.
But I think that the lawyers would just plead that she has been jailed for the same offense and she has served it out. I don't think it be out of reason to plead that.