A friend of a teen who was stabbed in the head and back during a wild attack on one of Sydney's busiest streets has been charged, but the three suspected attackers remain on the run. The teenager was brutally stabbed on King St, Newtown shortly after midnight on Saturday. A friend of the boy, who removed his own shirt to apply a tourniquet, has been charged with affray. The terrifying ordeal was captured on CCTV and shows the moment the teen was set upon by a group of people. A friend of the victim has been charged with affray over the brawl.