isturbing video of a high school cheerleader in absolute agony as she was forced into a painful split is causing uproar. Ally Wakefield, 13, screamed "please stop" nine times in the 24-second video. Her arms and legs are held down by teammates and the coach. It happened during cheer camp at East High School in Denver where Wakefield is an incoming freshman. Now the coach, his assistant and the school principal have been placed on leave while school officials and Denver Police investigate.