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Incident
Officer Peterson was shot and killed while attempting to arrest a man for driving on a revoked license. Officer Peterson, with another Poplar officer and a Sioux tribal police officer, observed the man driving the vehicle and attempted to stop him. The driver led the officers on a pursuit until the officers shot out one of his tires, causing the vehicle to overturn. The suspect exited the vehicle and opened fire on the officers with a .30-.30 rifle, killing Officer Peterson. The man then committed suicide.
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- 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.
Police Officer Peterson served with the Poplar Police Department.
Thank you for your service to the Poplar community. Gone but never to be forgotten.
Rest easy, Police Officer Peterson.
— S. Vincent Anthony, U.S. Army 1985-1993
Agency
Service Record
Incident Details
The Sacrifice · Felonious
Oscar is the only officer of Poplar Police Department remembered here.
Oscar is one of 93 officers killed feloniously in MT, 65.5% of the 142 remembered there.
Oscar is one of 15,743 officers killed feloniously in the United States, 57.1% of the 27,551 remembered there.
Oscar is one of 17,631 officers killed feloniously worldwide, 52% of the 33,917 remembered here.
33,917 officers are remembered on this memorial. Each number below is one of them.
Time
In 1950, 1 officer in MT was killed feloniously, the 25th heaviest of 58 years on record. The heaviest was 1935, with 6.
In 1950, 66 officers in the United States were killed feloniously, the 109th heaviest of 213 years on record. The heaviest was 1921, with 248.
In 1950, 66 officers worldwide were killed feloniously, the 117th heaviest of 265 years on record. The heaviest was 1921, with 516.
Who
Oscar was 53. Of the 81 killed feloniously in MT whose age is recorded, half were between 33 and 47; the middle age was 39.
Oscar was 53. Of the 14,220 killed feloniously in the United States whose age is recorded, half were between 31 and 47; the middle age was 38.
Oscar was 53. Of the 15,854 killed feloniously worldwide whose age is recorded, half were between 30 and 46; the middle age was 38.
When
November holds 6.5% of these deaths in MT; December holds the most, 15.1%. Saturdays: 16.1%.
November holds 8.1% of these deaths in the United States; December holds the most, 9.4%. Saturdays: 16.3%.
November holds 8.2% of these deaths worldwide; December holds the most, 9.2%. Saturdays: 16.2%.
How
Felonious deaths account for 100% of all 1 deaths at Poplar Police Department. The weapon recorded was rifle, in 100% of these deaths.
Felonious deaths account for 65.5% of all 142 deaths in MT, the most common cause. The weapon recorded was rifle, in 14% of these deaths.
Felonious deaths account for 57.1% of all 27,551 deaths in the United States, the most common cause. The weapon recorded was rifle, in 5.9% of these deaths.
Felonious deaths account for 52% of all 33,917 deaths worldwide, the most common cause. The weapon recorded was rifle, in 5.3% of these deaths.
Where the Name Is Cut
National Law Enforcement Officers Memorial · Panel 10-E
What is kept
Photographs, film, sound and papers — what survived a life.
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