Chicago Police Department, Illinois
End of Watch: Wednesday, August 3, 1881
Age: 32
Tour of Duty: 5 years, 7 months
Badge Number: 188
Cause of Death: Gunfire
Date of Incident: August 1, 1881
Weapon Used: Handgun
Suspect Info: Sentenced to life
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.