Campbell said he plans to call Gerken and three other witnesses to testify for the defense Thursday,
after which closing arguments are expected.
In addition to law enforcement, prosecutors called two Illinois State Police forensic scientists, and a
customer service manager of Illinois Tollway, who testified that Gerken drove through three eastbound
tolling locations right after the shooting, and that he passed back through them westbound between 6
and 7 a.m. the next morning.
Nachman testified that multiple police vehicles followed Gerken, their lights activated, when he took the
Peace Road exit about 6:50 a.m. Oct. 7, 2015, and that for mere seconds, he pulled over on Peace
Road near Fairview Drive, before speeding off and leading officers on about a 10-minute pursuit
eastbound on state Route 38.
The video showed the pursuit passing dozens of pulled-over vehicles as it continued through Cortland
and Maple Park, ran a red light at Meredith Road, and only stopped when Gerken reached a police
blockade at Route 47. Nachman said Gerken parked in the middle of the road, stepped out of the van
with his hands up and was arrested.
“In your 22 years as an officer, have you ever been involved in a chase like that?” State’s Attorney Rick
Amato asked Nachman.
”Not like that, no,” Nachman said.