I think perhaps, she was trying to ensure the situation didn't escalate and he kicked off at her. I have heard psychiatric nurses will use a similar approach when a patient is distressed about something, for instance the patient is highly agitated saying, I am not sick, the nurse will agree with them to diffuse the situation and calm the patient, even though the patient is obviously sick. Perhaps her approach is similar, it is not my decision, I dont make the rules so don't take it out on me. I mean this was a guy who ran over someone in cold blood because they pissed him off, you would want to keep him as calm possible I would have thought.