Parents of Prisoners Community Group
A group that tries to share with each other how they deal with being a good supporting parent of a prisoner and the unique problems that arise. What to share or not, how to deal with spouse of prisoner, ex-spouse of, children of prisoner which we may not see either anymore,so forth
The problem is, of course, do they remove the people causing problems or do you (really your son) end up in deeper than if you hadn't? You really need to see a criminal lawyer, if it's possible. Most have a free 'first' interview. I've done this in other situations and at least got some advice out of it.
Hang in there. I hope this helps.