Alonzo Theodore Larsen
Agency patch
Marshal

Alonzo Theodore Larsen

Mount Pleasant Police Department — Mount Pleasant, UT
Felonious
End of Watch October 15, 1945
Age 40
The Vigil Panel 82 ›
Gender Male

Incident

Marshal Alonzo Larsen was shot and killed after being called to a local cafe to deal with an unruly customer. He had removed the customer from the cafe and placed him in the cab of a pickup truck. As he talked to the man's wife, the man removed a pistol from the glove box and shot the marshal in the back. He then exited the truck and shot the marshal a second time. The suspect was arrested and sentenced to life in prison. The suspect died in prison in 1955.

Survivors

Marshal Larsen was survived by his wife.

In Our Keeping

Permanent identifier
BO-US-UT-EC9BCBD4
Stewardship
Maintained by NeuraWeb Global Inc.
Added to badge.nw
August 2, 2026
Last updated
August 2, 2026

Honored here by 1 tribute.

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Tributes

I never knew you. I am standing here anyway.
Marshal Larsen served with the Mount Pleasant Police Department.
Thank you for your service to the Mount Pleasant community. Gone but never to be forgotten.
Rest easy, Marshal Larsen.

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

Agency

Type Police Department
Location Mount Pleasant, UT
Platform Identity mppd.sanpete.ut.us.gov.nw

Service Record

End of Watch October 15, 1945
Age 40
Gender Male

Incident Details

Cause Felonious
Weapon Handgun

Marshal Alonzo Theodore Larsen 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 97,772 officers honored here.

In UT, 84 of 138 officers were killed feloniously — deliberately targeted and murdered in the line of duty — 60.9% of this state's fallen. That is 60.9 percentage points above the national rate of 0%.

Mount Pleasant Police Department
1
of 1 officers
100% Felonious
UT — Statewide
84
of 138 officers
60.9% Felonious
Nationwide
1
of 97,772 officers
0% Felonious

National Cause Distribution

How Felonious compares to all causes of officer death in the memorial record. Alonzo Theodore Larsen's cause is highlighted.

Felonious
1 (0%)
Accident
1 (0%)
Illness
1 (0%)
Cardiac
1 (0%)
Undetermined
1 (0%)
Suicide
1 (0%)

How Alonzo Theodore Larsen Compares

Age at Death
40
This officer
Avg for Felonious: 39.0 years

When Felonious Deaths Occur

Monthly distribution of Felonious deaths across the full memorial record. Alonzo Theodore Larsen is highlighted in Oct.

Jan
1,392
Feb
1,295
Mar
1,373
Apr
1,516
May
1,504
Jun
1,442
Jul
1,587
Aug
1,517
Sep
1,491
Oct
1,371
Nov
1,447
Dec
1,624

Weapons Used Against Officers

Most common weapons in felonious officer deaths. Alonzo Theodore Larsen was killed by handgun.

Handgun
3,684
Gun
3,592
Gun; Unknown type
1,492
Shotgun
1,109
Rifle
935
Officer's handgun
909

Others Who Wore This Badge

0 officers from Mount Pleasant Police Department are honored on badge.nw.