The dash cam video picks up just before Officer Birk exits his patrol car. You see a person cross the street from left to right, then John T. Williams is seen crossing and goes out of view. When Officer Birk steps out of his patrol car, his personal radio microphone switches on.
Officer Birk: "Hey, Hey, Hey. Put the knife down, put the knife down, put the knife down."
(Shots fired) Bang, bang, bang, bang, bang.
Officer Birk radios in: "Unit 33. Shots fired Boren and Howell. Subject wouldn't drop the knife."
Dispatcher: "Shots fired. Boren and Howell...."
Further radio transmissions can then be heard.
Then, a faint woman's voice can be heard saying, "He didn't do anything."
Officer Birk can be heard saying "Ma'am, he had a knife and he wouldn't drop it."
The radio dispatcher asks for a status report.
Officer Birk answers, "Under control. Subject is down."
Dispatcher: "Copy. Subject is down."
When other officers arrive, Birk can be heard saying:
"He had the knife open. I approached him. I asked him to drop it multiple times. He wouldn't drop it and he turned towards me."
Other officers can then be heard talking among as they deal with the scene.
Then, in response to an officer asking if he's ok, Birk says:
"Yeah, I'm fine."
The officer asks "he just had a knife?"
Birk: "Yeah, he had it out. He was carving it up, carving up that board, with it open. I approached him, and the tool (?), I instructed him to drop it multiple times. He wouldn't do it."
Other officer: "Good job."