Primitivo Marquez-Alejandro
Agency patch
Sergeant

Primitivo Marquez-Alejandro

Puerto Rico Police Department — San Juan, 127
Felonious Veteran
End of Watch October 12, 1993
Age 36
Tour of Duty 16 yrs
Badge 0-0082
The Vigil Panel 139 ›
Gender Male

Incident

Sergeant Primitivo Marquez-Alejandro was shot and killed while checking on two youths wearing ski masks. Sergeant Marquez-Alejandro and his partner were driving along road PR-175 near the community of Villa Margarita in Trujillo Alto around 8:30 p.m. when both saw two people wearing ski masks. When they told the suspicious youths to stop, one of the suspects pulled a gun and started shooting at the patrol car, hitting Sergeant Marquez-Alejandro, and causing a fatal arterial wound. He was not wearing his bulletproof vest at the time. His partner and other neighbors transported him to a nearby hospital where he was pronounced dead on arrival. Sergeant Marquez-Alejandro had served with the Puerto Rico Police Department for 16 years and was assigned to Precinct 172 North Trujillo Alto. He was also a U.S. Army Special Forces veteran who worked as a Guerilla Warfare Instructor. He is survived by his wife and two sons. Just 11 months before this incident, his brother, Officer Angel Luis Marquez-Rivera was shot and killed while two men tried to rob a convenience store in Rio Piedras, Puerto Rico.

Survivors

He is survived by his wife and two sons.

In Our Keeping

Permanent identifier
BO-US-PR-9D99BE7C
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 served 1985 to 1993. You served too, before the badge - different uniform, same idea. You go where you are sent and you do not get to pick the call.
Sergeant Marquez-Alejandro gave the Puerto Rico Police Department 16 years.
Thank you for your service to the San Juan community, and for your service before it. Gone but never to be forgotten.
Rest easy, brother.

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

Agency

Location San Juan, 127
Platform Identity prpd.pr.us.gov.nw

Service Record

End of Watch October 12, 1993
Tour of Duty 16 yrs
Age 36
Badge Number 0-0082
Gender Male

Incident Details

Cause Felonious
Weapon Gun; Unknown type
Offender suspicious person

Military Service

Primitivo Marquez-Alejandro served in the United States military before joining law enforcement. Full service record available on salute.nw.

Sergeant Primitivo Marquez-Alejandro 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 127, 294 of 388 officers were killed feloniously — deliberately targeted and murdered in the line of duty — 75.8% of this state's fallen. That is 21.6 percentage points above the national rate of 54.2%.

At Puerto Rico Police Department, 279 of 364 officers on record were killed feloniously — deliberately targeted and murdered in the line of duty — 76.6% of this agency's fallen.

Puerto Rico Police Department
279
of 364 officers
76.6% Felonious
127 — Statewide
294
of 388 officers
75.8% 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. Primitivo Marquez-Alejandro'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 Primitivo Marquez-Alejandro Compares

Age at End of Watch
36
This officer
Avg for Felonious: 39.0 years
Years of Service
16
This officer
Avg for Felonious: 8.5 years

Offender Outcome

suspicious person

When Felonious Deaths Occur

Monthly distribution of Felonious deaths across the full memorial record. Primitivo Marquez-Alejandro is highlighted in Oct.

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. Primitivo Marquez-Alejandro 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