an investigation is underway in dayton, ohio, into a very disturbing incident involving local police. body-camera video shows officers dragging a black paraplegic man from his car by his hair during a traffic stop. cnn's amara walker picks up the story, and we want to warn our viewers, the images are disturbing. >> reporter: the nearly-12-minute police body cam video of the september 30th police encounter begins with a traffic stop. >> i cannot step out. i'm a paraplegic. >> reporter: and ends with 39-year-old clifford owensby screaming, showing officers dragging him out of the car by his arm and hair before putting him in their cruiser. >> i'm a paraplegic! i'm a paraplegic. >> reporter: in the body cam video released by the dayton police department on friday, police say owensby was leaving a