"It's unclear what led up to the arrest on February 11 of the man identified as Ladarius Brown.
The video shows an African-American man in a white t-shirt, whose hands are cuffed behind his back, being pushed up against a wall by Roberts.
The officer, who is also African-American, then appears to give him an upper cut to the face with a fist and then punch him over the head.
A female police officer rushes in to break up the scene as bystanders film with their cell phones and one repeatedly screams 'I seen it!'
In a video taken from a different angle and obtained by WAPT, the same officer appears to knee the suspect.
Vance initiated an internal investigation after being supplied with the video.
Vance also told the outlet that he was 'proud' of the female officer who tried to break up the scene and that she did what she was trained to do. " - dailymail