Cops were responding to a 911 call on Friday afternoon in the Mount Vernon neighborhood of Fairfax County about a man “walking in the street shouting that he needed oxygen,” Roessler said. The unidentified man was having some type of “episode,” he added.

In the video, which the police department released to the public, someone can be heard attempting to get the man off a residential street and into an ambulance up the block. Another person, who appeared to be a medic, also addressed the victim, saying, “I’m here to help you, so tell me what you need.”

While the man is walking on the street, the video appeared to show Timberlake approach and deploy a stun gun multiple times and put his knees on the man’s back. The victim repeatedly shouts “No!” and says “I can’t breathe” several times after being handcuffed.