Langford A. Hennessey
Agency patch
Deputy Sheriff

Langford A. Hennessey

Felonious
End of Watch December 25, 1927
Age 56
The Vigil Panel 54 ›
Gender Male

Incident

Deputy Sheriff Langford Hennessey, Sheriff Wash Coppinger, and Deputy Sheriff James Conner were shot and killed in a shootout with members of the South Pittsburgh Police Department who held a grudge against the sheriff.

The city's night marshal was the former sheriff and had lost his re-election bid against Sheriff Coppinger. The night marshal had appointed a man who had been arrested by Sheriff Coppinger as a deputy marshal.

During a labor strike at a local factory, the night marshal and his officers supported the non-union workers who were being harassed by striking workers because they were not participating in the strike.

A county deputy witnessed the officers holding a union member at gunpoint and approached them. The city officers then held the deputy at gunpoint before dispersing. The deputy immediately notified Sheriff Coppinger, who responded to the scene with Deputy Hennessey, Deputy Conner, and his son, who was also a deputy.

The sheriff and deputies confronted the officers on 3rd Street, near Cedar Avenue, and attempted to resolve the situation peacefully by offering to discuss it with the mayor. The sheriff then informed one of the officers he would have to be arrested for pointing the gun at the deputy.

One of the officers then opened fire with a shotgun. During the ensuing shootout, Sheriff Coppinger and Deputy Hennessey were killed, along with the city's night marshal, his deputy, and a special officer who worked at the local factory. Deputy Conner, who also served as the South Pittsburgh police chief, suffered a fatal shotgun blast and died the following day.

On this Christmas Day please know that no passage of time can ever erase your service and sacrifice. Rest in peace always.

Detective Cpl/3 Steven Rizzo Delaware State Police (Retired) December 25th, 2020

In Our Keeping

Permanent identifier
BO-US-TN-36FFF385
Stewardship
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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 never knew you. I am standing here anyway.
Deputy Sheriff Hennessey served with the Marion County Sheriff's Office.
Thank you for your service to the Jasper community. Gone but never to be forgotten.
Rest easy, Deputy Sheriff Hennessey.

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

Agency

Location Jasper, TN
Platform Identity mcso.marion.tn.us.gov.nw

Service Record

End of Watch December 25, 1927
Age 56
Gender Male

Incident Details

Cause Felonious
Cause Detail Gunfire
Weapon Shotgun; 12 gauge
Offender Shot and killed

Deputy Sheriff Langford A. Hennessey 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 TN, 498 of 769 officers were killed feloniously — deliberately targeted and murdered in the line of duty — 64.8% of this state's fallen. That is 10.6 percentage points above the national rate of 54.2%.

At Marion County Sheriff's Office, 3 of 5 officers on record were killed feloniously — deliberately targeted and murdered in the line of duty — 60% of this agency's fallen.

Marion County Sheriff's Office
3
of 5 officers
60% Felonious
TN — Statewide
498
of 769 officers
64.8% 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. Langford A. Hennessey'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 Langford A. Hennessey Compares

Age at End of Watch
56
This officer
Avg for Felonious: 39.0 years

Offender Outcome

Shot and killed

When Felonious Deaths Occur

Monthly distribution of Felonious deaths across the full memorial record. Langford A. Hennessey is highlighted in Dec.

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. Langford A. Hennessey was killed by shotgun; 12 gauge.

Gun; Unknown type
5,083
Handgun
2,077
Shotgun
922
Officer's handgun
909
Automobile; Alcohol involved
530
Rifle
518

Incident Location