<p>Apparently, very few of you have even been in this sort of situation. The human body is capable of many things when pumped up with adrenaline. The brain also filters out unimportant details. At the time, it is unlikely he was consciously aware of the property line or even really what she was saying or doing. Of course, the brain still records everything and fills in details that are not readily available or sometimes unpleasant. </p>
<p>Thought experiment: I would keep hitting someone with my bat until they were truly incapacitated. Maybe that results in death, maybe not.</p>
<p>If she were down on the ground, that would not necessarily mean she could not get back up and cause him harm. She lied about being pregnant, maybe she just went down because she was a bad runner and figured he would not pull the trigger.</p>
<p>In general, there are a lot of paper tigers on this thread. </p>