** (Disclaimer: This video content is intended for educational and informational purposes only) ** Fairfax, Virginia — A Fairfax County Police Department officer faces three charges of assault and battery relating to an on-duty incident Friday. Fairfax County Officer Tyler Timberlake was arrested June 6, after bodycam shows him striking the man with a stun gun and then getting on top of him, along with the officer wearing the body camera. Once Timberlake is on top of the man, he presses the stun gun into the back of his neck and fires again. Fairfax County Police Chief Edwin C. Roessler Jr. said someone had called police about a man walking down a street shouting that he needed oxygen. An officer who responded before Timberlake had tried to deescalate the situation, the police chief said, adding that it’s unclear why Timberlake used his stun gun. As part of the investigation into the incident, the other three officers involved were placed on administrative leave. The man was treated at a hospital and released, the chief said. Timberlake faces up to 36 months of incarceration. Donate to PoliceActivity: https://www.patreon.com/PoliceActivity Like us on Facebook: https://www.facebook.com/PoliceActivity Follow us on Twitter: https://twitter.com/Police_Activity