The shooting happened on Friday August 30th on Highway 20 near Sisters.  

Troopers pulled over William Hall of Texas after complaints he was speeding and driving erratically.

Hall threatened troopers with a gun when he was stopped and he then led them on a high speed chase that ended in his death.

The officer say it appears Mr. Hall was probably under the influence of a stimulant.

A medical examiner determiend Hall shot himself in the head after he was forced to stop by officers a couple miles down the road.

Detectives learned Hall had recently served six years in prison for aggravated assault with a deadly weapon and that he was a member of the Aryan Brotherhood -- a white supremacist prison gang.

He apparently had vowed to commit suicide rather than return to prison.