The drama began at about 1 a.m. when troopers spotted a car weaving down Highway 167 near South 180th Street in Renton, said a Washington State Patrol spokesperson.
When troopers attempted to pull the car over, the driver took off down the highway. Troopers later flattened the car's right-side tires with a spike strip near South 277th Street, but the driver kept going.
As the car approached 15th Street NW in Auburn, the driver swerved left, went into median and crashed into a barrier.
Troopers approached the car and found the driver slumped over the wheel, dead of an apparent self-inflicted gunshot wound.
The driver was later identified as a 34-year-old Renton man.