To hell with their rights

Perhaps it's a sense of injustice or vengeance, but stories like this: link, make me think that our society has to get tougher on the perpetrators of violent crime.
Every sane person in this country knows that violent crime is not only against the law, but immoral. How is it, then, that our society condones this behaviour by not sentencing in the most aggressive way possible.
I have sympathy with liberals who argue that giving harsh sentences does not stop the causes of these crimes (lack of opportunities, poor parenting etc), but that's missing the point. If we don't show society that acts of violence will effectively mean the end of the perpetrator's life (in real or effective terms) then we will continue to lose the battle.
Of course we need to offer more opportunities and make better our parenting skills, but these things take time.
For the moment there's yet another family destroyed by yobs who will perhaps be given life sentences. This only means 10 years in prison. THAT IS NOT ENOUGH!
Time and time again it is shown that our society wants tougher sentences, but the powers that be think they know better and rely on changes to society via government. THESE DON'T WORK! The average member of society is not intelligent enough to realise that we need to either increase the efficiency of our society's infrastructure (which means working harder) or pay more taxes. The effect of doing neither results in a degradation in society. This has been happening for decades.

I want to live in a society where there's no violent crime. I think we need to get very tough on offenders and to hell with their rights. I grow to hate politicians more and more each day...