Memorial Page – Sheriff’s Deputy Cooper Dyson, Pierce Co., WA

3:00am, Saturday, December 21, 2019

Pierce County Sheriff’s Department this morning announced in a tweet:  “In great sadness we report that Deputy Cooper Dyson was killed in a collision while on duty, as he rushed to aide [sic] fellow deputies who were being assaulted by a domestic violence suspect.”

Deputy Sheriff Cooper Dyson

Trooper Dyson, 25, was the first to respond.  However, while his car was heading west on 112th Street, Parkland, “at a high rate of speed,” it left the road.  The car then rolled multiple times and struck a commercial building in the 1300 block.

Deputies responded to a 911 call from a passerby but found Deputy Dyson dead, according to Sgt. Ed Troyer, the Department’s spokesman.

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


  • Seattle Times
  • ODMP

Tragically, two sheriff’s deputies were killed in separate crashes on this day, many hundreds of miles apart. To see details of the other officer lost, click here.


In due course, if any family members or friends wish to add further information or photographs to this memorial page, please contact us at Road Safety USA.


To find our Memorial Pages for other law enforcement officers, please go to a search box on any page of this website and (including the commas) enter:
memorial page, law enforcement officer
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