Deputy Sheriff Cooper Andrew Dyson

Deputy Sheriff Cooper Andrew Dyson

Pierce County Sheriff's Department, Washington

End of Watch Saturday, December 21, 2019

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Cooper Andrew Dyson

Deputy Sheriff Cooper Dyson was killed in a single-vehicle crash in the 1300 block of 112th Street E while responding to backup other deputies at a domestic violence incident in Parkland.

The deputies who responded to the initial incident at 3:00 am were immediately attacked by a male subject who engaged them in a violent struggle. The deputies believed that the man was attempting to access a shotgun that was inside of the home and called for backup during the struggle.

Deputy Dyson was responding to their call for assistance when his vehicle left the roadway and struck a commercial building. A passerby called to report the crash and Deputy Dyson was found deceased by responding deputies and rescue personnel.

Deputy Dyson was a military veteran and had served with the Pierce County Sheriff's Department for two years. He is survived by his expectant wife and 2-year-old child.


  • Age 25
  • Tour 2 years
  • Badge 579
  • Military Veteran

Incident Details

  • Cause Automobile crash

emergency response, domestic

Most Recent Reflection

View all 109 Reflections

Deputy Dyson,

I learned tonight you are panel neighbors to our fallen deputy (Andrew Peery EOW 8-7-22). I got to meet your wife tonight at the LE memorial in DC, while paying my respects to Andrew. What an amazing woman. She swooped in and comforted my brothers at a moment that couldn’t have been timed any better. Thank you for that gift. (Everything happens for a reason, right?)

Thank you for your sacrifice my brother. We will meet someday on the other side.

EPSO (Colorado)

May 16, 2023

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