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CHICAGO — Illinois State Police said they are conducting a death investigation after a state trooper died from a gunshot wound on the Dan Ryan Friday afternoon.

At a news conference Friday night, state police identified him as District Chicago Trooper Gerald Mason.

State police said there is no safety threat to police or the public. They have not released any additional information about the circumstances surrounding the shootings.

At around 1:45 p.m., police responded to the area of 43rd Street and the Dan Ryan on the report of a shooting.

Mason was found inside his vehicle with a single gunshot wound, state police said. He was transported to the University of Chicago Medical Center in critical condition where he later died.

Mason was 36-years-old and an 11 year veteran of the state police.

“My son loved being a state trooper. Last conversation we had, he told me the job was becoming so stressful with the killings and what they can and cannot do. He was thinking about retiring earlier from the one job he loved so much,” Mason’s mother Linda Mason said.

Trooper Gerald Mason.

It is with profound heartache and unfathomable sadness that we inform you of the death of Trooper Gerald Mason. Trooper Mason was one of the many fearless Troopers assigned to ISP District Chicago. We are asking the public to respectfully give consideration to the family of Trooper Mason and the whole ISP family while we continue to grieve and work through this tragedy

– ISP Director Brendan Kelly

Friday evening, a large procession took place from the University of Chicago to the Cook County Medical Examiner’s Office. There were several Illinois state troopers, Chicago police officers and Chicago firefighters at the medical examiner’s office to pay their respects.

Local inbound lanes reopened at around 5:50 p.m.

The shooting comes the day ISP more than doubled its presence on Chicago District expressways due to a high number of shootings. ISP said they are increasing the number of officers by 157%.