Son in prison

My son is almost 37  went to prison first time at 18  served 5 years  since this time he has been in prison more than out. Currently serving 2 years for parole violation then looking at 12 years for a car wreck he caused. My son was on life support for weeks  massive brain damage  crushed leg etc  they had to cut part of his brain off   now my son is mentally impaired and at risk because of plates in head and leg  also his filter is now gone so he says whatever he is thinking.  In recent letter he informed me he got his jaw broke.   I so fear my son will die in prison    I pray all-out for peace but sometimes I just want to lay down and die