Unless they put him in Solitary he will dead within 2 months. A friend of mine worked at Sing Sing for several years. He told me that Child molesters/ rapist had a very short life expectancy behind bars.
My husband worked at San Quentin State Prison when he was in his 20's, before we were married. They fired him after six months because he wasn't prison-guard material. I thought he was pretty hard-assed but, apparently he was not enough that way. He had some interesting stories...and said what your friend said about child molesters/rapists.