Roll of Honor
Incident
Sergeant Peggy Vassallo was struck and killed by a vehicle while rendering aid to another driver after being involved in an accident shortly before 8:00 am.
Sergeant Vassallo, who was in full uniform, was en route to work when she was involved in a two-vehicle crash at the intersection of Lindbergh Blvd and Old Jamestown Rd, in St. Louis County. The other driver was complaining of neck pain, prompting Sergeant Vassallo to contact dispatchers to request medical assistance.
As she was speaking to dispatchers another vehicle entered the area at a high rate of speed. The vehicle swerved around Sergeant Vassallo's car and struck her, causing critical injuries. She was transported to a local hospital where she succumbed to her injuries several hours later. The driver of the vehicle that struck her was charged with second-degree involuntary manslaughter but later pled guilty to lesser charges and was sentenced to 2 years of probation in September 2019.
Sergeant Vassallo had served with the Bellefontaine Neighbors Police Department for 15 years and had previously served with the St. Louis County Police Department for over 13 years. She is survived by her husband, son, and two grandchildren. Sergeant Vassallo was a member of the Police Unity Tour.
Survivors
She is survived by her husband, son, and two grandchildren.
In Our Keeping
- Permanent identifier
BO-US-MO-D7D408B2- 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
29 years. You could have gone home.
Sergeant Vassallo gave the Bellefontaine Neighbors Police Department 29 years. Still answering calls at the end.
Thank you for your service to the St. Louis community. Gone but never to be forgotten.
Rest easy, Sergeant Vassallo.
— S. Vincent Anthony, U.S. Army 1985-1993
Agency
Service Record
Incident Details
Sergeant Peggy Marie Vassallo 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 MO, 237 of 813 officers were lost to accidents in the line of duty — 29.2% of this state's fallen. That is 1.8 percentage points below the national rate of 31%.
National Cause Distribution
How Accident compares to all causes of officer death in the memorial record. Peggy Marie Vassallo's cause is highlighted.
How Peggy Marie Vassallo Compares
When Accident Deaths Occur
Monthly distribution of Accident deaths across the full memorial record. Peggy Marie Vassallo is highlighted in Aug.