Angelito Tenorio, a West Allis alderman who is running for Wisconsin state treasurer, said he had just finished marching in the parade with his family and friends before he saw the car drive through the parade.
"We saw an SUV cross over, just put the pedal to the metal and just zooming full speed along the parade route," Tenorio said. "And then we heard a loud bang, and just deafening cries and screams from people who are struck by the vehicle. And then we saw people running away or stopping crying, and there are people on the ground who looked like they'd been hit by the vehicle."