Ana I said an average of three years, not at least three years. He can complete some work on probation supervision if deemed suitable for release with work outstanding. No, he hasn't expressed remorse to the court, but did apologise in a letter and to a parent years ago. That's a sign that his denial is not so entrenched that he can't admit some responsibility and mean it. Sex offenders often say after trial that they were told not to apologise and imply responsibility, and they were directed as to what to say when cross-examined.
He has to account for his hospital visit with Jimmy Savile now, and his 'accidental' possession of abusive images of children on his hard drive. So far, he has appeared to be a lone offender so what possessed him to join JS that day? It doesn't fit what is known of him. Much work to do in prison, and he won't be categorised as being low risk of reoffending without undergoing treatment.