Cornelius A. O'Donnell
Agency patch
Sergeant

Cornelius A. O'Donnell

New Jersey State Police — West Trenton, NJ
Felonious
End of Watch July 16, 1945
Age 42
Tour of Duty 17 yrs
Badge 367
The Vigil Panel 81 ›
Gender Male

Incident

Sergeant O'Donnell was shot and killed as he and another trooper escorted a prisoner back to New Jersey. The 30-year-old prisoner, a former mental patient wanted in Newark for murdering his wife with an axe, had been arrested in Pennsylvania and had agreed to turn himself in to New Jersey authorities. Sergeant O'Donnell and another trooper met the suspect on the Pennsylvania side of a railroad bridge and began to walk the suspect back across the river. As they got to the midpoint of the bridge the suspect attempted to jump over the railing, but was stopped by Sergeant O'Donnell. During the ensuing struggle the suspect was able to grab Sergeant O'Donnell's revolver and shot him twice in the abdomen, causing fatal wounds. He also shot the other trooper who later recovered from his wounds. He was captured later that night in a wooded area near the scene. On September 19, 1945, he was convicted of Sergeant O'Donnell's murder and sentenced to life. Four months later he was declared insane and the trial for his wife's murder was put off indefinitely. He died in prison December 18, 1962. Sergeant O'Donnell had served with the agency for 17 years.

Survivors

He was survived by his wife.

In Our Keeping

Permanent identifier
BO-US-NJ-67BF24A5
Stewardship
Maintained by NeuraWeb Global Inc.
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.
Sergeant O'Donnell gave the New Jersey State Police 17 years.
Thank you for your service to the people of New Jersey. Gone but never to be forgotten.
Rest easy, Sergeant O'Donnell.

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

Agency

Type State Police
Location West Trenton, NJ
Platform Identity njsp.nj.us.gov.nw

Service Record

End of Watch July 16, 1945
Tour of Duty 17 yrs
Age 42
Badge Number 367
Gender Male

Incident Details

Cause Felonious
Weapon Officer's handgun

Sergeant Cornelius A. O'Donnell is one of 1 officers killed feloniously — deliberately targeted and murdered in the line of duty across the full record of this memorial — 0% of all 97,772 officers honored here.

In NJ, 229 of 646 officers were killed feloniously — deliberately targeted and murdered in the line of duty — 35.4% of this state's fallen. That is 35.4 percentage points above the national rate of 0%.

At New Jersey State Police, 14 of 84 officers on record were killed feloniously — deliberately targeted and murdered in the line of duty — 16.7% of this agency's fallen.

New Jersey State Police
14
of 84 officers
16.7% Felonious
NJ — Statewide
229
of 646 officers
35.4% Felonious
Nationwide
1
of 97,772 officers
0% Felonious

National Cause Distribution

How Felonious compares to all causes of officer death in the memorial record. Cornelius A. O'Donnell's cause is highlighted.

Felonious
1 (0%)
Accident
1 (0%)
Illness
1 (0%)
Cardiac
1 (0%)
Undetermined
1 (0%)
Suicide
1 (0%)

How Cornelius A. O'Donnell Compares

Age at Death
42
This officer
Avg for Felonious: 39.0 years
Years of Service
17
This officer
Avg for Felonious: 8.4 years

When Felonious Deaths Occur

Monthly distribution of Felonious deaths across the full memorial record. Cornelius A. O'Donnell is highlighted in Jul.

Jan
1,392
Feb
1,295
Mar
1,373
Apr
1,516
May
1,504
Jun
1,442
Jul
1,587
Aug
1,517
Sep
1,491
Oct
1,371
Nov
1,447
Dec
1,624

Weapons Used Against Officers

Most common weapons in felonious officer deaths. Cornelius A. O'Donnell was killed by officer's handgun.

Handgun
3,684
Gun
3,592
Gun; Unknown type
1,492
Shotgun
1,109
Rifle
935
Officer's handgun
909