Criminal Law Questions? Ask a Criminal Lawyer.
HelloThis is Samuel and I will discuss this and provide you information in this regard.It appears you have reached out to all who can inform you about your son's well being - the Chaplain and your son's case manager. I suggest, that sometimes it is patience that we must endure when dealing in such situations. You can have his attorney/Public Defender contact the institution and make a visit to ensure he is safe.
If you find that there is foul play, you can contact the Department of Justice and have them investigate.
But I suggest, your first step is to contact his attorney/PD and have them check in on your son.