Where I was? At home condemning it. Just like I was here stating that while I understand the right of people to protest, I found mass demonstrations in times of a pandemic a monumentally bad idea and further said that riots are a criminal act.
As to your last question. I don't have to explain, because I don't know what happened, neither do you. Although I find it very unlikely that some cop decided a petite woman with nothing in her hand was a threat. A more likely explanation is that she was shot by accident. Either by a cop missing a shot at someone who was being a threat, or by someone actively struggling with a cop causing an accidental discharge of a weapon.