Leo Michael Koscelnick

Pennsylvania State Police — Harrisburg, PA

Veteran → Felonious

End of Watch August 15, 1977

Age 33

Tour of Duty 7 yrs 6 mo

The Vigil Panel 119 ›

Gender Male

Incident Service The Sacrifice Military Department 86

Incident

Corporal Leo Koscelnick was killed when he was struck by a vehicle while helping a stranded motorist. Corporal Koscelnick and the tow truck operator, were standing on the side of the Schuylkill Expressway next to the disabled vehicle when the 20-year-old driver of another car merged from the left lane to the right lane for some unknown reason and struck Trooper Koscelnick and the truck operator, killing them both. The driver had been en route to his grandfather's funeral. He was not injured but sent to the hospital in a state of shock. He was arrested and charged with homicide by motor vehicle. Corporal Koscelnick had served with the Pennsylvania State Police for seven and a half years. He had also served with Company C, 2nd Battalion, 109th Infantry of the Pennsylvania National Guard.

Survivors

He was survived by his wife.

In Our Keeping

Permanent identifier: BO-US-PA-69E3C46F
Stewardship: Maintained by NeuraWeb Global Inc.
Added to badge.nw: August 2, 2026
Last updated: August 2, 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.
Corporal Koscelnick gave the Pennsylvania State Police 7 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

Department Pennsylvania State Police

Type State Police

Location Harrisburg, PA

Platform Identity pasp.pa.us.gov.nw

Service Record

End of Watch August 15, 1977

Tour of Duty 7 yrs 6 mo

Age 33

Gender Male

Incident Details

Cause Felonious

Weapon Automobile

Military Service

Leo Michael Koscelnick served in the the United States military before joining law enforcement.

View full service record on salute.nw →

Corporal Leo Michael Koscelnick is one of 1 officers killed feloniously — deliberately targeted and murdered in the line of duty across the full record of this memorial — 0% of all 97,756 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 47.3 percentage points above the national rate of 0%.

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.

Pennsylvania State Police

of 87 officers

39.1% Felonious

PA — Statewide

597

of 1,261 officers

47.3% Felonious

Nationwide

of 97,756 officers

0% Felonious