Incident
Patrolman William Hallaran was shot and killed by a suspect he had previously arrested near the intersection of Wentworth Avenue and 25th Street. In 1882 Patrolman Hallaran arrested the suspect for burglary. His testimony at the trial helped convict the suspect and send him to prison. The suspect was sentenced to four years for the burglary. When he was released from prison, the suspect tracked down Patrolman Hallaran and shot and killed him. The suspect was arrested and convicted of murder. He was sentenced to 35 years of hard labor in the Joliet Prison. A year later the suspect escaped and remained at large for 34 years. He was returned to prison in January of 1923 after he had been arrested for assault with intent to kill the previous July. The suspect died in November 1933. Patrolman Hallaran served with the Chicago Police Department for less than 10 years.
In Our Keeping
- Permanent identifier
BO-US-IL-A14C0A11- 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.
Are you family? This record can be claimed and maintained by those who knew William. Claim this record.
This page is permanent and free. No fee to view it, no advertising, no tracking, and no account required. It will not be taken down.
Tributes
139 years is a long time for a name to go unread. Not today.
Patrolman Hallaran gave the Chicago Police Department 9 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 William S. Hallaran 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. William S. Hallaran's cause is highlighted.
How William S. Hallaran Compares
Offender Outcome
Sentenced to 35 years
When Felonious Deaths Occur
Monthly distribution of Felonious deaths across the full memorial record. William S. Hallaran is highlighted in Jul.
Weapons Used Against Officers
Most common weapons in felonious officer deaths. William S. Hallaran was killed by gun; unknown type.
Incident Location
Others Who Wore This Badge
570 officers from Chicago Police Department are honored on badge.nw. Showing the 16 most recent.















