If the defense was seriously putting forward an affirmative defense regarding a disability, he could have requested school records, medical records, CPS records, there had to be some sort of actual documentation of a disabling condition, no matter how screwed up the family is, because they always apply for public assistance, even if the kids never go to school. And there are additional waivers/stipends if the child has a disability.
Believe me, no matter how messed up the family is, when it comes to additional benefits, they are on it.