To an uninformed or rather media conditioned jury that perceived far distance is going to hurt her. Also the second round of shots came rather quick, obviously from good training, and that too will hurt her. I would expect them try to make it seem like she did not give enough time to de-escalate the situation, and once down was no longer a true threat.
“Another avoidable murder by a trigger happy cop, where a trained social worker would have made all the difference and not carelessly taken the life of this poor troubled sole... blah, blah, blah.”
Oh, and seriously Not Guilty! I’d train under her any day or night of the week.