It is also possible for the judge to give a longer sentence from what I understand. We can only hope.
That would be good, but also look on the "bright" side if he gets a shorter sentence... No matter what, no matter where he goes, after he is let "free" he will still have to answer for what he did. In prison he would be given everything he needs to survive, but when "free" he would have to earn it, and earn it hard. No decent employer will ever hire the guy, and noone who offers a decent apartment or house will rent to him. When he is let out, his life may be even more of a punishment than when he was in prison. The law doesnt dictate this; society does. He will never be able to do what you or I do in normal life, he will have a shadow that will haunt him for the rest of his days. He will be "free", but not free, as he will have opportunities in front of him that he can never ever take advantage of.
So, atleast you know he wont have a good life, for the rest of it. It doesnt undo what he did, but it is something.
I'm not religious or anything, but I hope your cousin is sitting pretty up in heaven, and has more fun stuff to do than those of us stuck on Earth.