Incident
Officer Jon Cook was killed in an automobile accident when his patrol car collided with another patrol car when both units rushed to the scene of a felony arrest at 2230 hours.
The officers were responding to backup another officer who was in the process of arresting a man who had brutally attacked his wife earlier in the day and who had been the focus of a day-long manhunt. The two patrol cars collided at 17th and Dolores Streets, causing fatal injuries to Officer Cook and seriously injuring his partner and the two officers in the second patrol car. The initial suspect was apprehended and could face charges related to Officer Cook's death.
Officer Cook had been with the San Francisco Police Department for two years.
Survivors
He is survived by his domestic partner, parents, three brothers, two sisters, and many nieces and nephews.
In Our Keeping
- Permanent identifier
BO-US-CA-E746692C- 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.
Police Officer Cook gave the San Francisco Police Department 2 years.
Thank you for your service to the San Francisco community. Gone but never to be forgotten.
Rest easy, Police Officer Cook.
— S. Vincent Anthony, U.S. Army 1985-1993
Agency
Service Record
Incident Details
Police Officer Jon Clifton Cook 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 CA, 719 of 1,837 officers were lost to accidents in the line of duty — 39.1% of this state's fallen. That is 8.1 percentage points above the national rate of 31%.
At San Francisco Police Department, 35 of 106 officers on record were lost to accidents in the line of duty — 33% of this agency's fallen.
National Cause Distribution
How Accident compares to all causes of officer death in the memorial record. Jon Clifton Cook's cause is highlighted.
How Jon Clifton Cook Compares
When Accident Deaths Occur
Monthly distribution of Accident deaths across the full memorial record. Jon Clifton Cook is highlighted in Jun.
Others Who Wore This Badge
105 officers from San Francisco Police Department are honored on badge.nw. Showing the 16 most recent.














