Seattle’s interim police chief on Wednesday demoted an assistant chief in connection with a skirmish with a protester holding an umbrella that led police to declare a riot last summer. 

Chief Adrian Diaz demoted Assistant Chief Steve Hirjak back to the rank of captain over his role as incident commander in the clash between riot-gear clad officers who sprayed tear gas and threw flash-bangs at protesters, sending people running after an officer struggled with the umbrella-holding protester, the Seattle Times reported. 

Protesters had opened umbrellas to protect themselves against tear gas. 

The incident unfolded near the department’s East Precinct on June 1, 2020. Days earlier, George Floyd was murdered by a police officer in Minneapolis. 

The East Precinct became the site of the short-lived CHOP (Capitol Hill Occupied Protest), which was also called CHAZ (Capitol Hill Autonomous Zone), where protesters sought to remove any police presence. 

The word "people" is spray-painted over the word "police" on the closed Seattle Police Department's East Precinct that was surrounded by the area known as the Capitol Hill Autonomous Zone (CHAZ), in Seattle last summer. (Getty Images)

Diaz, in a letter to City Councilmember Lisa Herbold, explained his reasoning for demoting Hirjak over another unnamed lower-level officer involved in the June 1 incident that the city’s police accountability office recommended for discipline. 

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"Decisions were made at levels of command above the Named Employee that bore directly on the Named Employee’s action and thus actions taken by officers in the field," Diaz wrote in the letter. He didn’t identify either of the officers. "As a simple matter of fairness, I cannot hold the Named Employee responsible for circumstances that were created at a higher level of command authority and for carrying out decisions made at a higher rank." 

Diaz initially said he was overturning the decision to disciple the lower-ranking officer two weeks ago, the Times reported. The officer had reportedly been in charge of giving orders that night. 

The accountability office found the "weight of the evidence shows that the large majority of the crowd was not acting violently at the time," before the officer grabbed the protester’s umbrella. 

Diaz wrote the department needs to "identify and address root causes of outcomes that we all can acknowledge were problematic."

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"For this reason, and considering all of the information that has come before me and performance that I have personally observed, I am writing to advise that I have removed the Incident Commander from the position of Assistant Chief and returned him to the Captain rank" he added. Hirjak was promoted in 2018. 

The Associated Press contributed to this report.