Elmer Jonathan Diaz
Agency patch
Police Officer

Elmer Jonathan Diaz

Lemoore Police Department — Lemoore, CA
Felonious
End of Watch November 2, 2019
Age 31
Tour of Duty 6 yrs
The Vigil Panel 170 ›
Gender Male

Incident

Police Officer Jonathan Diaz was shot and killed while intervening in a domestic violence incident while off duty.

He was attending a birthday party at a home on Eddy Street, near Carolyn Avenue, in Hanford when another partygoer was violently assaulted by her boyfriend. Officer Diaz was able to move the woman outside to safety and then returned into the home to de-escalate the incident.

The subject who assaulted the woman was an investigator for another local agency. As Officer Diaz re-entered the home the man opened fire, killing Officer Diaz and wounding his own father. The subject then killed himself.

Officer Diaz had served with the Lemoore Police Department for three years and had previously served with the Huron Police Department for three years.

Survivors

He is survived by three children, parents, and three siblings.

In Our Keeping

Permanent identifier
BO-US-CA-BF4C4BE9
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.
Police Officer Diaz gave the Lemoore Police Department 6 years.
Thank you for your service to the Lemoore community. Gone but never to be forgotten.
Rest easy, Police Officer Diaz.

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

Agency

Location Lemoore, CA
Platform Identity lpd.kings.ca.us.gov.nw

Service Record

End of Watch November 2, 2019
Tour of Duty 6 yrs
Age 31
Gender Male

Incident Details

Cause Felonious
Cause Detail Gunfire
Weapon Gun; Unknown type
Offender Committed suicide

Police Officer Elmer Jonathan Diaz 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 CA, 974 of 1,837 officers were killed feloniously — deliberately targeted and murdered in the line of duty — 53% of this state's fallen. That is 1.2 percentage points below the national rate of 54.2%.

At Lemoore Police Department, 1 of 2 officers on record were killed feloniously — deliberately targeted and murdered in the line of duty — 50% of this agency's fallen.

Lemoore Police Department
1
of 2 officers
50% Felonious
CA — Statewide
974
of 1,837 officers
53% 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. Elmer Jonathan Diaz'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 Elmer Jonathan Diaz Compares

Age at End of Watch
31
This officer
Avg for Felonious: 39.0 years
Years of Service
6
This officer
Avg for Felonious: 8.5 years

Offender Outcome

Committed suicide

When Felonious Deaths Occur

Monthly distribution of Felonious deaths across the full memorial record. Elmer Jonathan Diaz is highlighted in Nov.

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. Elmer Jonathan Diaz 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

Incident Location

Others Who Wore This Badge

1 officer from Lemoore Police Department are honored on badge.nw.