As the Summit Police Department was pursuing a car for aggravated battery to a police officer in Chicago just before 2 a.m. on May 6, they requested additional units for backup. Forest Park police followed the offending car west on I-290 with help from Summit police and a Chicago police helicopter. Oak Brook police put spike strips on the road at Mannheim and the expressway, where the car popped its back tires and came to a stop. Police from For…