Darrell Brooks Jr. appears in Waukesha County court on Friday, Jan. 14, 2022 in Waukesha, Wis. Brooks, accused of killing six people and injuring dozens more when he drove an SUV through a suburban Christmas parade must stand trial, a court commissioner ordered Friday. (Derek Johnson / Waukesha Freeman via AP, Pool)

A Milwaukee man accused of killing six people and injuring dozens more when he drove an SUV through a suburban Christmas parade must stand trial, a court commissioner ordered Friday.

District Attorney John Chisholm said the release of a man accused of running over holiday parade attendees in Waukesha was the result of “human error” by an early-career prosecutor. (Mark Hoffman / Milwaukee Journal / USA Today Network)

The Milwaukee district attorney whose office allowed for the release of a man accused of running over holiday parade attendees last month said Thursday that his low cash bail amount was the result of “human error” by an early-career prosecutor.

This Nov. 16, 2021, photo provided by the Waukesha County Sheriff Office in Waukesha, Wis., shows Darrell Brooks Jr. (Waukesha County Sheriff Office via AP)

Darrell Brooks Jr. was charged with five counts of intentional homicide in the crash Sunday in Waukesha, a Milwaukee suburb. Conviction on first-degree intentional homicide carries a mandatory life sentence, Wisconsin’s stiffest penalty.

Police stand near toppled chairs lining W. Main St. in downtown Waukesha, Wis., after an SUV drove into a parade of Christmas marchers, Sunday, Nov. 21, 2021. (John Hart/Wisconsin State Journal via AP)

The Waukesha Christmas Parade was noisy, and most of the people in it had their backs to the vehicle. So they had no warning before the driver started hitting people, sending bodies flying or crumpling while others fled or rushed to help.

Toppled chairs line W. Main St. in downtown Waukesha, Wis., after an SUV drove into a parade of Christmas marchers Sunday, Nov. 21, 2021. (John Hart/Wisconsin State Journal via AP)

The joyous scene of marching bands and children dancing in Santa hats and waving pompoms turned deadly in an instant on Sunday, giving way to screams and scenes of crumpled bodies as the SUV sped through barricades and struck dancers, musicians and others.