I'm sorry, RM. Why did the others get out so much more quickly? What was the difference in the charges or the representation?
Is there a program your son can go into when he gets out? Have you contacted MHMR to see if there is an Independent Living Program or an adult Assisted Living Program available? There were adult supports available for Rob when he was done with his Residential Treatment Center (RTC)/group home but he turned them down. I would think that with your son's multiple and complex challenges (and perhaps being adopted might help his case, too) that he would be eligible for something, too.
He definitely needs something to look forward to. sigh.
Hugs,
Suz