mentally challenged sam or jared

[eg1128.livejournal.com]

All I remember about the fic is that either sam or jared were mentally challenged and that they ended up going to court vs. their father , and during the trial is stated that if their father didn't keep them in a simple mindset that they would have been able to have been mentally competent for their age and have had a normal life. I think it was J2 or Sam/Dean but no incest!!!