A teen is baby-sitting her six-year-old brother. She tells him that he can't eat ice cream for dinner. He then throws a temper tantrum and continues to ask for the ice cream. After repeatedly denying his request, he is utterly disgusted with his sister. There is a gun hidden in the closet of his father's room. He knows that it is there, and goes to get it. He then proceeds to ask his sister one more time for the ice cream. She again denies this request, so the brother shoots his sister, fatally wounding her. If this had occurred in Te ....