James J. O'Brien
Agency patch
Detective

James J. O'Brien

Seattle Police Department — Seattle, WA
Felonious
End of Watch January 21, 1921
Tour of Duty 11 yrs
The Vigil Panel 40 ›
Gender Male

Incident

Detective James O'Brien was shot and killed near 705 2nd Avenue at approximately 10:00 pm when he and his partner spotted a man fitting the description of the suspect wanted for the murders of Police Officer William Angle and Police Officer Neil McMillan. The two officers had been shot one hour earlier. When Detective O'Brien and his partner identified themselves, the suspect drew a handgun and shots were exchanged. During the exchange, Detective O'Brien was killed. The suspect was apprehended and tried for all three murders six days later. He was convicted, sentenced to death, and hanged at Walla Walla State Prison on April 1, 1921. Detective O'Brien had served with the Seattle Police Department for 11 years.

Survivors

He was survived by his wife and son.

In Our Keeping

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Added to badge.nw
August 2, 2026
Last updated
August 2, 2026

Honored here by 1 tribute.

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Tributes

I never knew you. I am standing here anyway.
Detective O'Brien gave the Seattle Police Department 11 years.
Thank you for your service to the Seattle community. Gone but never to be forgotten.
Rest easy, Detective O'Brien.

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

Agency

Type Police Department
Location Seattle, King County, WA
Platform Identity seatpd.king.wa.us.gov.nw

Service Record

End of Watch January 21, 1921
Tour of Duty 11 yrs
Gender Male

Incident Details

Cause Felonious
Weapon Handgun

The Sacrifice · Felonious

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

33,917 officers are remembered on this memorial. Each number below is one of them.

  1. See the roll
  2. See the roll
Compare against
I

Time

In 1921, 248 officers in the United States were killed feloniously, more than in any other year.

Every year on record · United States
II

Who

James had served 11 years; the middle length of service was 6 years.

Age at death
Where he stood among them
Age by years of service
III

When

January holds 8% of these deaths in the United States; December holds the most, 9.4%. Fridays: 14.3%.

By month
By day of the week
IV

How

Felonious deaths account for 57.1% of all 27,551 deaths in the United States, the most common cause. The weapon recorded was handgun, in 23.4% of these deaths.

Every cause
Weapons recorded
V

His people

Seattle Police Department has 60 officers remembered here, James among them.

Across the years
VI

Where

Detective James J. O'Brien

Seattle Police Department · End of Watch January 21, 1921

Where the Name Is Cut

National Law Enforcement Officers Memorial · Panel 6-E

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