John J. Gaffney
Agency patch
Detective

John J. Gaffney

Newark Police Division — Newark, NJ
Felonious
End of Watch December 7, 1912
Age 38
Tour of Duty 12 yrs
The Vigil Panel 27 ›
Gender Male

Incident

Detective Gaffney succumbed to a gunshot wound sustained the previous night as he and another officer attempted to question three men in the Central Railroad yards at Lafayette Street. The officers were following the three men when one of the men suddenly opened fire on them, striking Detective Gaffney in the abdomen. The other officer returned fire but did not strike the suspects. Detective Gaffney was transported to St. James Hospital where he succumbed to his wounds the following night at 1830 hours. Detective Gaffney had been with the agency for 12 years and was assigned to the Detective Bureau.

In Our Keeping

Permanent identifier
BO-US-NJ-BDE104DA
Stewardship
Maintained by NeuraWeb Global Inc.
Added to badge.nw
April 2, 2026
Last updated
July 23, 2026

Honored here by 1 sentinel - 1 tribute.

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Tributes

I never knew you. I am standing here anyway.
Detective Gaffney gave the Newark Police Division 12 years.
Thank you for your service to the Newark community. Gone but never to be forgotten.
Rest easy, Detective Gaffney.

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

Agency

Location Newark, NJ
Platform Identity npdpd.essex.nj.us.gov.nw

Service Record

End of Watch December 7, 1912
Tour of Duty 12 yrs
Age 38
Gender Male

Incident Details

Cause Felonious
Weapon Gun; Unknown type
Offender Not available

Detective John J. Gaffney is one of 17,623 officers killed feloniously — deliberately targeted and murdered in the line of duty across the full record of this memorial — 54.2% of all 32,508 officers honored here.

In NJ, 264 of 646 officers were killed feloniously — deliberately targeted and murdered in the line of duty — 40.9% of this state's fallen. That is 13.3 percentage points below the national rate of 54.2%.

At Newark Police Division, 28 of 58 officers on record were killed feloniously — deliberately targeted and murdered in the line of duty — 48.3% of this agency's fallen.

Newark Police Division
28
of 58 officers
48.3% Felonious
NJ — Statewide
264
of 646 officers
40.9% Felonious
Nationwide
17,623
of 32,508 officers
54.2% Felonious

National Cause Distribution

How Felonious compares to all causes of officer death in the memorial record. John J. Gaffney's cause is highlighted.

Felonious
17,623 (54.2%)
Accident
10,088 (31%)
Illness
2,974 (9.1%)
Cardiac
1,306 (4%)
Undetermined
260 (0.8%)
Suicide
256 (0.8%)
vehicular
1 (0%)

How John J. Gaffney Compares

Age at End of Watch
38
This officer
Avg for Felonious: 39.0 years
Years of Service
12
This officer
Avg for Felonious: 8.5 years

Offender Outcome

Not available

When Felonious Deaths Occur

Monthly distribution of Felonious deaths across the full memorial record. John J. Gaffney is highlighted in Dec.

Jan
1,392
Feb
1,295
Mar
1,373
Apr
1,517
May
1,505
Jun
1,443
Jul
1,587
Aug
1,516
Sep
1,553
Oct
1,371
Nov
1,447
Dec
1,624

Weapons Used Against Officers

Most common weapons in felonious officer deaths. John J. Gaffney was killed by gun; unknown type.

Gun; Unknown type
5,083
Handgun
2,077
Shotgun
922
Officer's handgun
909
Automobile; Alcohol involved
530
Rifle
518