according to CNN. "They hit him... they hit him," the witness says.

CNN noted that FBI spokesperson special agent Andrea Simmons' account differed from the video.

The video contradicts Simmons' account who said: "This agent, who had the second subject detained on the ground, gave verbal commands to the remaining subjects to stop and retreat. However, the subjects surrounded the agent and continued to throw rocks at him. The agent then fired his service weapon several times, striking one subject who later died."

The tape does not appear to show the suspects throwing rocks.