Roll of Honor
Incident
Trooper David Monahan was killed when his patrol car was intentionally rammed during a roadblock. Other troopers and local officers were chasing a serial burglary suspect in Chester County when the driver of the stolen vehicle struck the passenger side of Trooper Monahan's vehicle. He was transported to a local hospital where he succumbed to his injuries. The suspect and the other trooper were also injured. The 24-year-old suspect and was charged with homicide by motor vehicle and second degree murder. He was convicted of both and sentenced to life. Trooper Monahan was a United States Air Force veteran of the Vietnam war and had served with the Pennsylvania State Police for nine years.
Survivors
Survivors include his wife, son, and daughter.
In Our Keeping
- Permanent identifier
BO-US-PA-45D25022- 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.
Trooper Monahan gave the Pennsylvania State Police 9 years.
Thank you for your service to the people of Pennsylvania, 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
David Dominick Monahan served in the Air Force (1962â1965) before joining law enforcement.
Trooper David Dominick Monahan 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 PA, 597 of 1,261 officers were killed feloniously — deliberately targeted and murdered in the line of duty — 47.3% of this state's fallen. That is 6.9 percentage points below the national rate of 54.2%.
At Pennsylvania State Police, 34 of 87 officers on record were killed feloniously — deliberately targeted and murdered in the line of duty — 39.1% of this agency's fallen.
National Cause Distribution
How Felonious compares to all causes of officer death in the memorial record. David Dominick Monahan's cause is highlighted.
How David Dominick Monahan Compares
Offender Outcome
Sentenced to life
When Felonious Deaths Occur
Monthly distribution of Felonious deaths across the full memorial record. David Dominick Monahan is highlighted in Apr.
Weapons Used Against Officers
Most common weapons in felonious officer deaths. David Dominick Monahan was killed by automobile.
Incident Location
Others Who Wore This Badge
86 officers from Pennsylvania State Police are honored on badge.nw. Showing the 16 most recent.
