Look.. march protest speak about what you believe in. That's the beauty of out country. When you get in front of vehicles and scare any driver, do not be surprised if you get ran over. I may run you over too.. if I am feeling threatened.. Just saying.
According to one report, the protestors surrounded a police car and were throwing eggs at it. The officer told them to "back away" and then pulled forward and left. But a second police vehicle was right behind and that's the one that hit the woman.