Angela O’Boyle, who lives in an apartment on the fifth floor which overlooks the Waukesha Christmas parade route, told CNN’s Natasha Chen she was on the balcony watching tonight.

“The next thing I heard were screams and turned my head and saw the car come and plow into the band that was just pass my balcony at that point," she said.

She added, "It hit at least two people right away and rolled over them. And then continued down the road to People’s Park, which is at the end of the block – and then kept going, it didn’t stop.” 

Boyle said she heard screaming and people yelling out their children’s names. 

She went on to say, “it was not something that I wanted to see.”