The crowd was so dense that SWAT team members had to evacuate him to an ambulance. He was taken to Carolinas Medical Center in critical condition.
Protests broke out in Charlotte in the wake of the fatal police shooting of Keith Lamont Scott, 43.
Scott was shot Tuesday by Charlotte-Mecklenburg police Officer Brentley Vinson, who was not in uniform or wearing a body camera. Three other uniformed officers who were on the scene had body cameras on, according to police.
Both Vinson and Scott are black.
Protesters on Thursday night called on police to release dashcam video of the confrontation, although Putney has said that he does not anticipate releasing the video.