Primitivo Marquez-Alejandro
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
Service Record
Incident Details
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.
National Cause Distribution
How Felonious compares to all causes of officer death in the memorial record. Primitivo Marquez-Alejandro's cause is highlighted.
How Primitivo Marquez-Alejandro Compares
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.
Weapons Used Against Officers
Most common weapons in felonious officer deaths. Primitivo Marquez-Alejandro was killed by gun; unknown type.
Incident Location
Others Who Wore This Badge
363 officers from Puerto Rico Police Department are honored on badge.nw. Showing the 16 most recent.















