More details have been provided about the child abuse investigation at a Waukesha school.
Investigators say a teacher at The Lawrence School, Heather Miller, slammed a special needs baby into his crib mattress then held him there for about 30 seconds until the boy started to wheeze. Another teacher saw the abuse and reported it. Waukesha Police arrested Miller and three other teachers who did not report the abuse on Wednesday.
She is awaiting formal charges.
