Incident
Night Watchman Gerrior and Night Supervisor Amlaw were beaten to death at the State Hospital for the Criminally Insane in Bridgewater, Massachusetts, by an inmate known to be the most vicious of all the other inmates. He was admitted to Bridgewater Hospital in 1914 after he was transferred from the state prison where he was serving a 10 year sentence for breaking, entering, and larceny. He broke a post from the foot of his bed, shaped it into a bat and laid in wait.
Watchman Gerrior was making his rounds when he encountered the inmate standing in the open doorway of his cell. No one could ever figure out how he unlocked his cell door. He used the bat to beat Watchman Gerrior to death. He then walked down a corridor, met Supervisor Amlaw, and beat him to death the same way. He then used keys he took to liberate four inmates from their cells. As they walked towards an exit they met several guards who sounded the alarm, overpowered them, and returned them to their cells.
A criminally insane inmate who kills can not be held responsible for his actions. He died at Bridgewater Hospital in 1943.
Watchman Gerrior was survived by his wife, daughter, and three sons.
Survivors
Watchman Gerrior was survived by his wife, daughter, and three sons.
In Our Keeping
- Permanent identifier
BO-US-MA-F8E74EAD- 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 never knew you. I am standing here anyway.
Night Watchman Gerrior served with the Massachusetts Department of Correction.
Thank you for your service to the Milford community. Gone but never to be forgotten.
Rest easy, Night Watchman Gerrior.
— S. Vincent Anthony, U.S. Army 1985-1993
Agency
Service Record
Incident Details
Night Watchman Wilfred Gerrior is one of 17,559 officers killed feloniously — deliberately targeted and murdered in the line of duty across the full record of this memorial — 53.9% of all 32,586 officers honored here.
In MA, 199 of 469 officers were killed feloniously — deliberately targeted and murdered in the line of duty — 42.4% of this state's fallen. That is 11.5 percentage points below the national rate of 53.9%.
At Massachusetts Department of Correction, 13 of 15 officers on record were killed feloniously — deliberately targeted and murdered in the line of duty — 86.7% of this agency's fallen.
National Cause Distribution
How Felonious compares to all causes of officer death in the memorial record. Wilfred Gerrior's cause is highlighted.
How Wilfred Gerrior Compares
When Felonious Deaths Occur
Monthly distribution of Felonious deaths across the full memorial record. Wilfred Gerrior is highlighted in Feb.
Weapons Used Against Officers
Most common weapons in felonious officer deaths. Wilfred Gerrior was killed by blunt object; bat.
Incident Location
Others Who Wore This Badge
14 officers from Massachusetts Department of Correction are honored on badge.nw.









