greg surfingin, channel 9 eyewitness news. >> the sheriff is putting three extra deputies on the streets to help patrol. you can follow greg suskin and other channel 9 reporters to find out about major news as it's happening. >>> rock hill officials have identified a jogger joggerrary attacker. he chased the woman intending to stab her. they will release the man's name once he is concerning a lot of people in charlotte. we released this yesterday at 5:00. you can see a cmpd officer >> reporter: john, councilmember -- councilmembers that i spoke to who are considered the police department's bosses are not commenting while an internal investigation into it unfolds. this is the video that we are talking about. the police officers have the suspect on the ground at the sardis place apartments. the officer straddling him is punching his back. malcolm elliott. they were trying to arrest him following a hit and run crash and a foot chase. the strikes were to get elliott to comply. we're told that he did not request or require medical the department is investigating allegations of use of force bu