Last year, a man was found guilty of driving a car to a Christmas parade near Milwaukee that killed six people.
Darrell Brooks faces 77 charges, including six counts of murder, in connection with the Nov. 21 attack in Waukesha, about 15 miles from Wisconsin.
More than 60 people were injured in the incident, and the victims ranged in age from 8 to 81.
Brooks now faces life in prison.
The 40-year-old initially pleaded guilty, citing mental illness, but withdrew his guilty plea in September.
The following month, he fired his lawyers and began defending himself.
He argued that the car had a faulty accelerator and that he had no intention of harming anyone, and honked his horn to warn bystanders.
Prosecutors said Brooks fled the SUV after an argument with his girlfriend, but other than being provoked, he didn’t know why he drove to the parade.
He was on bail at the time on domestic violence charges.
“When you ride the parade route and roll over the kids … your intent is well known. It’s not accidental,” Waukesha County District Attorney Su Oper said in closing arguments.