At the end she was blocked in, no where to go. It would be important to know what was said and done at that point. How much time was there, was she warned, was she asked to exit the car, was she combative and did she attempt to cooperate? An eyewitness said she saw the baby taken out of the car and then immediate gunfire, that is troublesome to me, because that sounds like the plan was to extract the baby and kill her.
If the woman was having a panic attack then there was no reasoning with her at that time — but that’s what Tazers are for.