Spokane County Sheriff’s Office, Washington
End of Watch: Wednesday, November 4, 2026
Deputy Sheriff Mason Acheson succumbed to gunshot wounds he received while responding to a domestic violence call on November 3, 2026.
Around 2:25 p.m., deputies responded to a female victim stating she had been shot at the 18700 block of South Smythe Road in Spangle. The SWAT team was called after a drone discovered a deceased body in the yard, and deputies realized the suspect had two felony warrants. At 3:15 p.m., the SWAT team and deputies attempted to enter the home when they were ambushed. A man inside the residence fired upon them, and a gunfight ensued.
Deputy Acheson and Deputy Parker Perry were critically wounded. Deputy Acheson passed away the next morning at Providence Sacred Heart Medical Center. Deputy Perry is on life support until his organs can be donated.
Deputy Acheson was a Washington Army National Guard veteran. He had served with the Spokane County Sheriff’s Office for over four years and previously served with the Washington State Patrol. Survivors include his wife and two children.