Fairfax County police have released body camera footage of an incident last month in which an officer fatally shot a woman during a welfare check in Reston.

The footage shows the moments leading up to the fatal shooting of 33-year-old Sydney Wilson, who was reportedly in an agitated state.

On September 16, Peter Liu, trained in crisis intervention, responded to Wilson’s apartment on Sunrise Valley Drive after her doctor raised concerns about her mental health.

According to police, when Liu arrived, Wilson initially opened her door but closed it after a brief interaction, leaving the officer waiting outside for nearly ten minutes.

When Wilson finally emerged, she was holding a knife and immediately attacked the officer.

Body camera footage shows Officer Liu repeatedly told Wilson to stand back as she came toward him and struck him with the knife. Despite multiple warnings, Wilson continued, forcing the officer into the hallway.

As Wilson lunged at Liu again, he fired three shots, hitting her. The footage also shows the officer bleeding from a wound on his forehead after being cut by Wilson during the struggle.

Other officers arrived shortly afterwards to assist, and Wilson was transported to a hospital where she was pronounced dead.

When it happened, Fairfax County Police Chief Kevin Davis described Liu’s actions, saying, “Our police officer acted bravely. He certainly showed some grace under pressure.”

Davis noted that Officer Liu Wilson gave at least eight verbal warnings before firing his weapon.

Wilson, who was 6 feet tall and weighed 330 pounds, had a history of mental health problems and had had previous contact with police.

Davis confirmed that the officer involved Liu has been placed on administrative leave pending the outcome of both a criminal and administrative investigation.

Watch the full bodycam footage below: