4. Ms. B is married to a very violent man who beats her and her children, causing her terrible, terrible injuries, and Bi-Polar disorder which is a mental illness triggering amongst other things, inability to think clearly. After one such violent incident, and while her husband is asleep on the couch, Ms. B finds his gun and kills him. The defense (or Excuse) she can use which has the best chance of being successful is:
Battered Wife Defense
Insanity
Duress