Trooper David D. Monahan

Trooper David D. Monahan

Pennsylvania State Police, Pennsylvania

End of Watch Thursday, April 17, 1980

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David D. Monahan

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 U.S Air Force veteran of the Vietnam war and had served with the Pennsylvania State Police for nine years. He was survived by his wife, son, and daughter.


  • Age 38
  • Tour 9 years
  • Badge Not available
  • Military Veteran

Incident Details

  • Cause Vehicular assault
  • Weapon Automobile
  • Offender Sentenced to life

Most Recent Reflection

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Trooper Monahan,
On today, the 40th anniversary of your death I would just like to say thank you for your service and sacrifice-not just as a Law Enforcement Officer but for our Country as well when you served with the USAF during the Vietnam War. And to your Family and loved ones, I wish to extend my deepest sympathy.


United States Border Patrol

April 17, 2020

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