offense. mark has a good relationship with his wife cracked? yes he does. and he says that his wife also wants to work on the relationship to? yes. then the forensic evidence. they said that kathy s lowbody temperature shows that mark killed her with carbon monoxide before he called 9-1-1. but the question was, when exactly did the poison gas kill her? the prosecution argue that she was already dead before he called 9-1-1, because the body was already cold. how cold was? it apparently the er doctor got it very wrong. this is the nurses note saying that the actual temperature was different than what you had written. is that correct? yes. so cathy s body was not as cold as the doctor thought.