Missouri beating victim Kaylee Gain was suspended from school the day before a fight in which her attacker repeatedly pounded her head into the pavement, according to a new report. Gain, 16, suffered a skull fracture and a brain bleed that put her in a coma for two weeks after the March 8 incident. Gain, who is white, and her attacker, who is black, based on the video, are students at Hazelwood East High School in St. Louis; the attack took place about a mile from the school, according to the New York Post. The stage might have been set for the confrontation the day before, the outlet said. Ga…