A Multnomah County Grand Jury returned a "no true bill" in the shooting death of 53-year-old Robert R. Porter on January 3, 2018.
The grand jury determined that no criminal prosecution was warranted as a result of the use of deadly force by 27-year-old Tyson B. Pfau.
This investigation began on January 3, 2018, at 6:59 p.m., when East Precinct officers responded to the report of a robbery and shooting at the U-Haul Powell Boulevard, located at 4831 Southeast Powell Boulevard. Officers and medical personnel arrived and located Porter suffering from gunshot wounds. He was transported by ambulance to a Portland hospital for treatment but he later died of his injuries.
Detectives have learned that Porter entered the U-Haul Powell Boulevard and demanded money while brandishing a handgun. During the robbery Pfau, a valid concealed handgun license holder, fired his handgun, striking Porter multiple times. Another U-Haul Powell Boulevard employee called 9-1-1 after the robbery and shooting. Pfau and witnesses present at the time of this incident cooperated with the subsequent investigation.
Porter was armed with a handgun at the time of the shooting. Detectives believe Porter was involved in multiple robberies in the Portland area prior to the January 3, 2018 incident.