A Cowlitz County Sheriff's deputy was killed while responding to a disable vehicle.
Just after 10 p.m. Saturday the deputy responded to Fallert Road near Kalama River road on a report of a disabled vehicle blocking the road. A short time after arriving the deputy was shot.
Arriving officers gave the deputy first aid and he was flown to a Portland hospital on Life Flight, but died a short time after arriving.
The Clark County Major Crimes unit is investigating the shooting.
Sunday night, the suspect was involved in a standoff with officers and was fatally shot.
Two other people in connection with Derosier's shooting are in custody.