The drama began at about 10:30 p.m. Tuesday when state troopers became involved in a high-speed pursuit of a white pickup on Interstate 5 near the King-Pierce county line, said Renee Witt of the Seattle police.
The pickup, occupied by a 36-year-old man and a woman, kept heading north into Seattle then exited the freeway in the Beacon Hill area and crashed near Swift Avenue and South Eddy Street.
The woman remained in the car and was later taken to Harborview Medical Center for injuries she sustained in the crash.
The man jumped out of the pickup truck and ran up 23rd Avenue, where officers lost track of him.
A K-9 police dog was brought in and traced the suspect to a house with a storage shed. As officers searched the property with the police dog, they came upon the man hiding behind the storage shed.
Police say the man warned approaching officers from inside the shed: "I've got a pistol, too."
After the man refused to step outside the shed, police say they saw the man holding what they believed was a handgun. The suspect pointed the gun at police and that's when one officer fired multiple times, striking the suspect. He was taken to Harborview Medical Center, where he later died.
The man was later identified as Austin J. Derby, 36. He has previous convictions for kidnapping, robbery, forgery and taking a motor vehicle
Officials recovered the Derby's weapon which turned out to be a realistic-looking pellet gun.
The officer who shot him, a six-year veteran of the force, was placed on administrative leave as per standard policy. The incident remains under investigation.