A Cook County jury awarded $5.25 million to the family of a 25-year-old Divvy bike rider who was fatally struck by a flatbed truck.The verdict was reached Tuesday after a trial before Associate Judge Bridget Jane Hughes.Jurors found the truck driver and his employer liable for $7 million in damages, which was reduced to $5.25 million after they found cyclist Virginia Murray was 25% negligent in the crash.On July 1, 2016, Cosmin A. Radu — driving a vehicle owned by A&B Hardwood Flooring Supplies — was …