The trooper was going through the intersection of Route 59 and Higgins Road with his lights and sirens on, when another vehicle hit his squad car.

Criminal investigators with the Illinois State Police are asking for the public's help in their investigation regarding the death of a 35-year-old man.

An Illinois State Trooper was critically injured Saturday morning in a five-vehicle crash in suburban South Barrington that left two other people injured, authorities said.

Three Illinois State Police squad cars were struck within two days in violations of the state’s “Move Over Law,” even as troopers mourn the death of Trooper Clay Carns, who was killed in a similar crash on December 23rd.