Incident
Trooper William Mills was shot and killed while investigating a complaint involving two neighbors in Brookview, Maryland. While on the scene he was shot in the chest with a .38 caliber handgun and knocked down. As he attempted to draw his weapon he was shot in the chest with a high powered rifle. The man who shot him also shot and killed the neighbor he had been arguing with. On November 6th, 1979, the 68-year-old subject was found not guilty by reason of insanity and sent to a mental institution. Trooper Mills had served with the Maryland State Police for almost nine years.
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BO-US-MD-A891E4FB- Stewardship
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- 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.
Trooper First Class Mills gave the Maryland State Police 9 years.
Thank you for your service to the people of Maryland. Gone but never to be forgotten.
Rest easy, Trooper First Class Mills.
— S. Vincent Anthony, U.S. Army 1985-1993
Agency
Service Record
Incident Details
Trooper First Class William P. Mills Jr. 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 MD, 195 of 377 officers were killed feloniously — deliberately targeted and murdered in the line of duty — 51.7% of this state's fallen. That is 51.7 percentage points above the national rate of 0%.
At Maryland State Police, 14 of 42 officers on record were killed feloniously — deliberately targeted and murdered in the line of duty — 33.3% of this agency's fallen.
National Cause Distribution
How Felonious compares to all causes of officer death in the memorial record. William P. Mills Jr.'s cause is highlighted.
How William P. Mills Jr. Compares
When Felonious Deaths Occur
Monthly distribution of Felonious deaths across the full memorial record. William P. Mills Jr. is highlighted in Jun.
Weapons Used Against Officers
Most common weapons in felonious officer deaths. William P. Mills Jr. was killed by rifle.
Incident Location
Others Who Wore This Badge
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