Roll of Honor
Incident
Patrolman Fred Mercer was killed in a motorcycle accident on the Charles River Parkway, at the intersection with Western Avenue, in Cambridge.
He was attempting to stop a speeding motorist when a truck turn into his path, causing him to collide with it. He was transported to a local hospital where he succumbed to his injuries several hours later.
Patrolman Mercer had served with the Metropolitan Police Department for 12 years.
Survivors
He was survived by his wife, son, five brothers.
In Our Keeping
- Permanent identifier
BO-US-MA-E398E7E1- Stewardship
- Maintained by NeuraWeb Global Inc.
- 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.
Patrolman Mercer gave the Metropolitan Police Department 12 years.
Thank you for your service to the Boston community. Gone but never to be forgotten.
Rest easy, Patrolman Mercer.
— S. Vincent Anthony, U.S. Army 1985-1993
Agency
Service Record
Incident Details
Patrolman Frederick G. Mercer is one of 10,088 officers lost to accidents in the line of duty across the full record of this memorial — 31% of all 32,508 officers honored here.
In MA, 158 of 469 officers were lost to accidents in the line of duty — 33.7% of this state's fallen. That is 2.7 percentage points above the national rate of 31%.
At Metropolitan Police Department, 7 of 12 officers on record were lost to accidents in the line of duty — 58.3% of this agency's fallen.
National Cause Distribution
How Accident compares to all causes of officer death in the memorial record. Frederick G. Mercer's cause is highlighted.
How Frederick G. Mercer Compares
When Accident Deaths Occur
Monthly distribution of Accident deaths across the full memorial record. Frederick G. Mercer is highlighted in Sep.
Incident Location
Others Who Wore This Badge
11 officers from Metropolitan Police Department are honored on badge.nw.
