Looks like using a vehicle to hurt people isn't new for him, as recently as earlier this month. From the Milwaukee Journal Sentinel
(CBR is changing the URL for some reason but you can search for it):
https://www.js***********/story/news...jr/8717524002/
He's been charged with 5 counts of first degree intentional homicide, according to police.In the case this month, a woman told police Brooks purposefully ran her "over with his vehicle" while she was walking through a gas station parking lot after he had followed her there after a fight, according to the criminal complaint. The woman was hospitalized for her injuries, court records show.