Security Take em Down

at the store i work at the security take down a guy the security guard to the right of the screen, choked him out.. story was the guy had been kicked out by the managers in the blue shirts for hitting a 18 year old female member of staff he then started arrguing with the security 5 mins before this video starts the guard to the right had pinned him up on the wall outside then the guy come back with a knuckle duster but that guard dont play games and chokes him out before he even noticed (was recorded from store CCTV on time laps hope you can see it ok)