Even though it is guided by precedent and process, the judicial system by its very nature will never be satisfactory to those who demand or deserve justice.
Can even the harshest punishment ever truly fit the crime and can justice ever be absolutely just? Probably not.
Parents whose young child is killed will never get that child back no matter what sentence is imposed on the murderer. Likewise, the harm and heartache caused to the victims of indecent assault or rape will always be greater than the punishment imposed on the abuser.
This is only natural. The offender may be punished, but because the crime is so traumatic, the victims and/or their families are also punished, often for the rest of their lives. Life is unfair at times, and this is vividly illustrated in court far too often.
This does not mean that the justice system is wrong, just that it often can never come close to producing a result that eases the pain and suffering of those who did not deserve what happened to them. Even those victims who don't have vengeance in their heart and decide to forgive the offender, deserve some closure by seeing that person punished.