If Anders Behring Breivik is found to be mentally competent, the toughest sentence Norwegian law can mete out is 21 years, though he may still remain incarcerated if he is deemed to be a danger to society. Breivik may be walking the streets by the time he's 55.
Many say that it is thoughtless, even reckless to blame an entire political movement for the actions of men like Breivik or Dr. Tiller's killer. I am inclined to agree. But it is just as reckless to dismiss these men as simply crazed.