Back up slowly? You’re missing that you do NOT ever drive your car into a crowd. Why take a jackass that would do something so preposterous and defend them. The details of his criminal defense are another matter, he is an idiot and worse.
Unless it’s a parade or a crosswalk you also don’t walk on the streets.
I did drive into a crowd in France. I was patient and they moved out of the way as if was something they do frequently. None of us were inconvienced too much.