Michael O'Connor

St. Louis Metropolitan Police Department — St. Louis, MO

Felonious

End of Watch April 22, 1922

The Vigil Panel 43 ›

Gender Male

Incident Media Service The Sacrifice Memorials 1 Department 175

Incident

Police Officer Michael O'Connor and Police Officer Bernard Mengel were shot and killed while responding to a robbery at 3000 South Broadway. The two officers and a third officer were guarding money at a Trust Company across the street from a bank. A man ran in and notified the officers the bank was being robbed. As the three officers ran across the street the suspects exited and a shootout erupted in which Officer O'Connor and Officer Mengel were both struck in the head and killed. The three suspects fled the scene but were all apprehended. Two of the suspects were hanged at the St. Louis City Jail on July 18, 1924.

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Last updated: August 2, 2026

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Tributes

I never knew you. I am standing here anyway.
Police Officer O'Connor served with the St. Louis Metropolitan Police Department.
Thank you for your service to the St. Louis community. Gone but never to be forgotten.
Rest easy, Police Officer O'Connor.

— S. Vincent Anthony, U.S. Army 1985-1993

Agency

Department St. Louis Metropolitan Police Department

Type Police Department

Location St. Louis, City of Saint Louis, MO

Platform Identity stlopd.saintlouis.mo.us.gov.nw

Service Record

End of Watch April 22, 1922

Gender Male

Incident Details

Cause Felonious

Weapon Gun

The Sacrifice · Felonious

Michael is one of 15,743 officers killed feloniously in the United States, 57.1% of the 27,551 remembered there.

34,117 officers are remembered on this memorial. Each number below is one of them.

Compare against

Time

In 1922, 228 officers in the United States were killed feloniously, the 3rd heaviest of 213 years on record. The heaviest was 1921, with 248.

Every year on record · United States

When

April holds 8.4% of these deaths in the United States; December holds the most, 9.4%. Saturdays: 16.3%.

By month

By day of the week

III

How

Felonious deaths account for 57.1% of all 27,551 deaths in the United States, the most common cause. The weapon recorded was gun, in 22.8% of these deaths.

Every cause

Weapons recorded