I notice that he was actually given an indeterminant sentence but MAY be released on PAROLE after serving a MINIMUM of two years.Now lets translate that out of Mirrorspeak into English. He must serve at least two years before he can apply to heard by a Parole Board. Even if he satisfies the Board, he will be released on license. If he breaks the conditions of his parole he will be back inside.
Upping the punishment either by the family or in prison will make little difference to the incidence of this type of crime, they do it because they have found that a little violence ensures they get away with it. This scrote thought he would get away with it the possible punishment never entered his head. The answer to crime reduction is ensuring they get convicted. Violence is more and more being used by petty criminals as a route to persuading witnesses to not testify or even give statements to the plod.