Incident
Patrol Officer and Training Instructor Jason Gallero suffered a fatal medical event while participating in a morning run at the Cook County Sheriff's Police Training Academy in Maywood.
Officer Gallero, who was an instructor with the academy, was running with cadets and other instructions when he collapsed near Fifth Avenue and Chicago Avenue. He was transported to Gottlieb Memorial Hospital where he was pronounced dead at approximately 8:30 am.
Officer Gallero had served with the Cook County Sheriff's Police Department for 14 years and had previously served with the Cook County Department of Corrections for eight years.
Survivors
He is survived by his daughter.
In Our Keeping
- Permanent identifier
BO-US-IL-CC6FB1E2- Stewardship
- Maintained by NeuraWeb Global Inc.
- Added to badge.nw
- April 2, 2026
- Last updated
- July 23, 2026
Honored here by 1 sentinel - 1 tribute.
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Tributes
22 years. You could have gone home.
Patrol Officer Gallero gave the Cook County Sheriff's Police Department 22 years. Still answering calls at the end.
Thank you for your service to the Maywood community. Gone but never to be forgotten.
Rest easy, Patrol Officer Gallero.
— S. Vincent Anthony, U.S. Army 1985-1993
Agency
Service Record
Incident Details
Patrol Officer Jason Gallero is one of 2,974 officers lost to illness connected to their service across the full record of this memorial — 9.1% of all 32,508 officers honored here.
In IL, 66 of 1,318 officers were lost to illness connected to their service — 5% of this state's fallen. That is 4.1 percentage points below the national rate of 9.1%.
At Cook County Sheriff's Police Department, 3 of 7 officers on record were lost to illness connected to their service — 42.9% of this agency's fallen.
National Cause Distribution
How Illness compares to all causes of officer death in the memorial record. Jason Gallero's cause is highlighted.
How Jason Gallero Compares
When Illness Deaths Occur
Monthly distribution of Illness deaths across the full memorial record. Jason Gallero is highlighted in Sep.
Incident Location
Others Who Wore This Badge
6 officers from Cook County Sheriff's Police Department are honored on badge.nw.





