'Guest' you make some good points there. If it were possible to rely on the British system of justice to metaphorically 'take the life' of the murderer by removing him from society for the rest of his natural life I'd have no problem with that. However, the reality is that they can almost count on being released within ten years, often to then repeat their heinous crimes.
The severity of the punishment must fit the crime, and in no way does a ten-year stretch even begin to equate with, for instance, the subjecting of a child to degrading and disgusting sexual violence and murder.
Why should the killer have greater rights than his victim? Somebody tell me.