11:11 AM PT -- Cops just announced Brooks Jr. faces 5 counts of first degree intentional homicide.
10:11 AM PT -- TMZ has confirmed the person of interest as Darrell Brooks Jr. A law enforcement source tells us Brooks was fleeing another incident when he barreled through the parade. We're told there will be an investigation into how the parade route was secured and where those failures took place.
The man who's been reported as a person of interest in the Waukesha parade tragedy -- killing at least 5 people -- is a local rapper who used an SUV in one of his music videos that appears to be the same one that plowed through the crowd.
Darrell Brooks Jr. -- who went by the stage name Mathboi Fly -- released a music video a couple years ago set in Milwaukee. Several times in the video, you see the red Ford Escape, which looks like the one seen in the horrific videos of the Christmas Parade.
YouTube pulled the music video from the original account, leaving this message in its place -- "This video is no longer available because the YouTube account associated with this video has been terminated."
However, it's since been re-posted by at least one other account.
CBS 58 News got Brooks' vehicle in his driveway shortly after the massacre -- the damage is clear, and beyond disturbing.
Brooks Jr. has a recent criminal history in the area ... getting charged on November 5 with resisting an officer, bail jumping, 2nd degree recklessly endangering safety, disorderly conduct and battery.
In addition to the 5 fatalities, cops said Sunday night at least 40 more were injured when the SUV rammed through the crowd of parade viewers and participants.