Incident
Patrolman Walter O'Neill and Patrolman John Shanahan were accidentally shot and killed while chasing hold-up suspects. Patrolman Shanahan was on plainclothes duty looking for several hold-up men who were committing robberies in the area. He stopped four youths and, after searching them, asked them to accompany him to the station house for questioning. As the youths were walking with Patrolman Shanahan they saw a patrolman in uniform in a traffic booth at the corner of Leonard Street and Hudson Boulevard (modern day Kennedy Boulevard). Patrolman O'Neill, also in plainclothes, was standing about 10 feet from the traffic booth. Suddenly all of the suspects fled on foot toward the traffic booth, and one youth yelled to the uniformed patrolman, "Stop that man, he's holding us up." Patrolman Shanahan drew his weapon and fired one shot at the fleeing suspects. Upon hearing the youths cry for help and seeing Patrolman Shanahan firing at them, Patrolman O'Neill drew his weapon and ran toward them. When Patrolman Shanahan saw Patrolman O'Neill, in plainclothes, approaching with a gun, he shot and killed him. At this point, the traffic officer exited his booth, and fired at Patrolman Shanahan, striking him two times, killing him.
In Our Keeping
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- Added to badge.nw
- August 2, 2026
- Last updated
- September 17, 2026
Honored here by 1 tribute.
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Tributes
I never knew you. I am standing here anyway.
Patrolman O'Neill served with the Jersey City Police Department.
Thank you for your service to the Jersey City community. Gone but never to be forgotten.
Rest easy, Patrolman O'Neill.
— S. Vincent Anthony, U.S. Army 1985-1993
Agency
Service Record
Incident Details
The Sacrifice · Accident
Jersey City Police Department has lost 41 officers; 21 of them lost to accidents.
Walter is one of 258 officers lost to accidents in NJ, 39.9% of the 647 remembered there.
Walter is one of 8,275 officers lost to accidents in the United States, 30% of the 27,551 remembered there.
Walter is one of 10,100 officers lost to accidents worldwide, 29.8% of the 33,917 remembered here.
33,917 officers are remembered on this memorial. Each number below is one of them.
Time
In 1929, 3 officers at Jersey City Police Department were lost to accidents, more than in any other year.
In 1929, 11 officers in NJ were lost to accidents, more than in any other year.
In 1929, 118 officers in the United States were lost to accidents, more than in any other year.
In 1929, 130 officers worldwide were lost to accidents, the 2nd heaviest of 200 years on record. The heaviest was 1930, with 131.
When
March holds 9.5% of these deaths at Jersey City Police Department; December holds the most, 19%. Saturdays: 23.8%.
March holds 10.5% of these deaths in NJ, more than any other month. Saturdays: 12.8%.
March holds 7.4% of these deaths in the United States; August holds the most, 9.5%. Saturdays: 14.9%.
March holds 7.4% of these deaths worldwide; August holds the most, 9.3%. Saturdays: 14.7%.
How
Accident deaths account for 51.2% of all 41 deaths at Jersey City Police Department, the most common cause.
Accident deaths account for 39.9% of all 647 deaths in NJ, the 2nd most common cause.
Accident deaths account for 30% of all 27,551 deaths in the United States, the 2nd most common cause.
Accident deaths account for 29.8% of all 33,917 deaths worldwide, the 2nd most common cause.
His people
Jersey City Police Department has 41 officers remembered here, Walter among them.
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Thomas Flynn Nov 29, 1879
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Edward O'Brien Dec 18, 1881
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Nicholas Nester Oct 7, 1908
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Dennis J. Sullivan Jun 12, 1910
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Hugh J. Clarke Oct 1, 1913
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Charles Graham Jun 11, 1914
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John Patrick Murphy
Nov 29, 1915
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James F. Doherty
Aug 1, 1916
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Thomas Joseph Cavanagh
Jun 23, 1921
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James Dinley Nov 6, 1921
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Eugene C. Otersen Jan 7, 1922
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William P. Clark Aug 2, 1922
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Charles Henry Ackerman Oct 11, 1922
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James B. Quinlan Apr 7, 1923
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John Black
May 22, 1923
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Clarence Weir
May 22, 1923
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Walter O'Neill
Mar 2, 1929
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John J. Shanahan Mar 2, 1929
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Richard H. Fletcher, Jr.
Apr 21, 1929
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Edward Ruark Dec 12, 1930
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Joseph Francis Sewell
Jul 18, 1932
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James J. Carroll May 27, 1934
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Walter Harrigan Aug 27, 1934
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William Cahill Oct 26, 1946
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William McCaffery Dec 13, 1958
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Stephen Lipka Nov 8, 1965
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Stanley P. Przygocki
Oct 29, 1967
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Casper J. Buonocore, Jr.
Sep 12, 1973
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John J. Bracken
Sep 12, 1973
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Dominick Edward Conticchio
Sep 10, 1974
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William G. McCarthy Jan 14, 1976
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Donald Patrick Carroll
Nov 6, 1986
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Samuel R. Wilson
Jan 4, 1989
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John E. Laughery
Nov 24, 1992
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Domenick J. Infantes, Jr.
Jul 6, 2001
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Shawn Carson
Dec 25, 2005
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Robert Nguyen
Dec 25, 2005
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Marc Anthony DiNardo
Jul 21, 2009
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Melvin Vincent Santiago
Jul 13, 2014
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Christopher Robateau
Jan 5, 2018
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Joseph Alan Seals
Dec 10, 2019
Where
Where the Name Is Cut
National Law Enforcement Officers Memorial · Panel 13-E
What is kept
Photographs, film, sound and papers — what survived a life.
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