A quarter-mile from the rotary building, at 4:39 p.m., an officer told a dispatcher a maroon Ford Escape "just blew by [him]" at White Rock and Hartwell avenues.
Barricades blocking traffic to the parade route were removed from that intersection just a minute before, according to police audio and time codes provided by Broadcastify.
The SUV continued down White Rock Avenue then turned onto westbound Main Street, just behind the start of the parade route. It did not go through another police barricade before reaching the parade route.
At the intersection where the suspect allegedly turned, a police car and several plastic barriers created a barricade to divert westbound traffic from Main Street, according to witness statements. The position of that barricade did not block a right-hand turn from White Rock Avenue, which meant the SUV was behind the barricade when it turned onto Main Street. The Waukesha Police Department did not respond to requests for comment.
A few moments later, the suspect allegedly rammed through the parade participants, killing five and injuring more than 40 people, including children.
The suspect who allegedly drove over the Marching Blackshirts of Waukesha South High School and other participants in the festivities was later identified by police as Darrell E. Brooks Jr., 39. A law enforcement official confirmed to The Washington Post that Brooks had been fleeing the scene of an alleged fight involving a knife.
The suspect then allegedly drove down Main Street, hitting more than 40 people and killing at least five of them.
Down the road, instead of following the parade route and making a turn to get to Wisconsin Avenue, the suspect allegedly went straight through North West Avenue, passing over the barriers.
Adriana Usero contributed to this report.