By Joseph Wilkes The GoFundMe fundraiser for Missouri teen Kaylee Gain has smashed the quarter of a million dollar mark after shocking footage of the girl’s brutal assault horrified people across the world. Kaylee, 15, was brutally attacked and suffered severe brain damage when her head was smashed against the concrete multiple times during a fight at high school. She is seen twitching on the ground in the upsetting footage from the fight. The other teenage girl fled, leaving Kaylee to convulse until emergency services arrived. The teen’s family said she remains in critical condition, but the …