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
August 2, 2026
Last updated
August 2, 2026

Honored here by 1 tribute.

Are you family? This record can be claimed and maintained by those who knew John. Claim this record.

This page is permanent and free. No fee to view it, no advertising, no tracking, and no account required. It will not be taken down.

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

Type Police Department
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

Detective John J. Gaffney 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 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
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. John J. Gaffney's cause is highlighted.

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

How John J. Gaffney Compares

Age at Death
38
This officer
Avg for Felonious: 39.0 years
Years of Service
12
This officer
Avg for Felonious: 8.4 years

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
1,516
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. John J. Gaffney was killed by gun.

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