Incident
Officer Patrick O'Brien succumbed to a gunshot wound sustained two days earlier when he and another officer was seriously wounded as they assisted in the arrest of a man who shot at a citizen. The shooter barricaded himself inside his home at 42 Rebecca Street. After Officer O'Brien demanded entry, the assailant opened fire with a revolver through a crack in the door, wounding both officers. Officer O'Brien died two days later. Other officers returned fire seriously wounding the suspect. The 19-year-old suspect was convicted of murder and sentenced to life. Officer O'Brien served with the Chicago Police Department for five and a half years.
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BO-US-IL-A672EC13- Stewardship
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- Added to badge.nw
- April 2, 2026
- Last updated
- July 23, 2026
Honored here by 1 sentinel - 1 tribute.
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Tributes
145 years is a long time for a name to go unread. Not today.
Patrolman O'Brien gave the Chicago Police Department 5 years.
Thank you for your service to the Chicago community. Gone but never to be forgotten.
— S. Vincent Anthony, U.S. Army 1985-1993
Agency
Service Record
Incident Details
Patrolman Patrick M. O'Brien is one of 17,623 officers killed feloniously — deliberately targeted and murdered in the line of duty across the full record of this memorial — 54.2% of all 32,508 officers honored here.
In IL, 842 of 1,318 officers were killed feloniously — deliberately targeted and murdered in the line of duty — 63.9% of this state's fallen. That is 9.7 percentage points above the national rate of 54.2%.
At Chicago Police Department, 396 of 571 officers on record were killed feloniously — deliberately targeted and murdered in the line of duty — 69.4% of this agency's fallen.
National Cause Distribution
How Felonious compares to all causes of officer death in the memorial record. Patrick M. O'Brien's cause is highlighted.
How Patrick M. O'Brien Compares
Offender Outcome
Sentenced to life
When Felonious Deaths Occur
Monthly distribution of Felonious deaths across the full memorial record. Patrick M. O'Brien is highlighted in Aug.
Weapons Used Against Officers
Most common weapons in felonious officer deaths. Patrick M. O'Brien was killed by handgun.
Incident Location
Others Who Wore This Badge
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