saintpeter - //Lee Rigbys killers come to mind, police didn't shoot to kill so it ended up with a very long and expensive trial, at our expense btw! It was clear as day that the two scum committed the murder yet we gave them their day in court, why? Now it is costing us thousands keeping them behind bars, 3 square meals a day, heating, laundry, TV all supplied, living better than most pensioners and low paid workers!! //
Your point is one that is raised with regularity when the subject of the death penalty is debated.
My point is consistent, and I will happily trot it out one more time -
We are blessed to live in a civilised society.
Because our society is civilised, we have a justice system which considers evidence fairly and dispassionately, so that the innocent are able to avoid punishment, and the guilty receive it, and every effort is made to ensure that those two concepts are not reversed.
Again because our society is civilised, we do not have a death penalty, so murderers are incarcerated, often for the rest of their lives, and again because we are civilised, the punishment is removal of liberty, not condemnation to live in squalor or violence, or any of the other scenarios that some people would wish.
These are the prices we pay for the freedoms we enjoy. It's not perfect, but compared to the vigilante alternative that some would welcome, I think it was and is the best we can do in an imperfect world.