Dcfs in illinois corrupt

My 2 grandsons are in my foster care. The judge ordered the youngest to go live with his dad. He is on probation for breaking his restraint order my daughter filed on him. He held a gun to my daughters head in front of the boy. We are a strong Catholic family and have been lied to by the agency Family Core. Family core gave us the wrong phone number on the acr review. No family meeting since September. I haven’t seen the caseworker since January. I want them held accountable for their recommendations that the child be placed with the father just because he has his classes done. My daughter is a nurse for a worldwide renowned oncologist. I want Justice or their will be a dead child.
Please help