So justice is about going through the 'correct procedures' with the likes of this 'person', getting Social Services involved, then the courts, then detainment and supervision for him so that he isn't able to do anything like this again ??
So that is a waste of resources for a start, resources that could be better spent elsewhere I'm sure. Yes, we do seem to have a mindset of trying to 'cure' the problem instead of preventing it in the first place. There is no doubt that this person is sub-human scum, and I can understand the feeling of hatred and contempt for him ( the missus just read the OP and nearly threw up ). This is why people are saying that they want him dead, castrated, etc.
It may not be the answer, but Mr. Bartlett, for you to say that people like you need protecting from people like noseall, I would say that, unless you are into child murder, a paedo or rapist, I don't think you will have anything to worry about a mob of vigilantes knocking your door down. When people are passionate about a subject, they react from their gut, not their head. My first reaction upon reading the OP was to hope that the sub human met a horrible end, and I still do.