On November 21, 2021, around 4:39 p.m. (CST), a red 2010 Ford Escape SUV, moving at about , broke through barricades and was driven through the annual Christmas parade in Waukesha. One police officer banged on the hood of the SUV in an attempt to get the driver to stop. In the final stage of the rampage, an officer fired his gun in an attempt to stop the vehicle.
