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Detective Patrolman Patrick J. O'Neill | Chicago Police Department, Illinois Chicago Police Department, Illinois

Detective Patrolman

Patrick J. O'Neill

Chicago Police Department, Illinois

End of Watch: Wednesday, March 23, 1921

Bio & Incident Details

Age: 45

Tour: Not available

Badge # 2963

Cause: Gunfire

Weapon: Gun; Unknown type

Offender: Escaped from prison

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Patrolman Patrick J. O'Neill, of the Detective Bureau was shot at 10:00 p.m. in the rear of 6415 Washtenaw Avenue as he and several other police officers attempted to make an arrest.

When Patrolman O'Neill and fellow officers surrounded the building, the gunman ran out the rear door and opened fire. Patrolman O'Neill suffered multiple gunshot wounds and succumbed to his injuries at 11:30 pm the same day.

The brother-in-law and sister of the killer were arrested and on April 22, 1921, indicted on the charge of accessory to murder. On July 30, 1921, the killer was arrested in St. Paul, Minnesota. On September 28, 1921, the case against the killer's The brother-in-law and sister were nolle prossed. On October 14, 1921, Officer O'Neill's killer was sentenced to hang December 15, 1921. He escaped from the County Jail on December 11, 1921. He was never recaptured; It was reported that he died in 1951.

In 1927 the suspect was responsible for planning a robbery of a pharmacy in Detroit, Michigan. A gunfight took place resulting in the deaths of the two suspects and Officer Stacey C. Mizner of the Detroit Police Department.

Patrolman O'Neill was survived by his wife and three children.

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Related Line of Duty Deaths

Police Officer Stacey C. Mizner
Detroit Police Department, Michigan
End of Watch: Saturday, January 29, 1927
Cause: Gunfire

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Most Recent Reflection

Great Grandfather you were a good man , your son papa Joe was a great man you bloodline lives on ! Your great grandson Daniel Martinez

Daniel Martinez
Great Grandson
July 29, 2014


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