Report : Report : A year - old girl was cut in the neck , arms and face ; a knife is found . NEW : The boy , 16 , faces murder charges ; he could later be charged as an adult . NEW : The family of Maren Sanchez says more should be done to prevent school violence . The assault happened at Jonathan Law High School in Milford , Connecticut .
NEW : Police : A 16-year-old girl was cut in the neck , chest and face ; a knife is found . NEW : The suspect , 16 , faces murder charges ; he could later be charged as an adult . NEW : The family of Maren Sanchez says more should be done to prevent school violence . The assault happened at Jonathan Law High School in Milford , Connecticut .