Twenty one years - that is the maximum sentence mass murderer Anders Behring Breivik can get for killing about one hundred people in Oslo and Utoya Island under Norwegian law. Since he is only 32 years old, his chances of becoming a free man one day are very high. This vile domestic terrorist should spend the rest of his life in prison, at the very least. In fact, he deserves to be executed.
The death penalty is very problematic, and should rarely be used. Some say the government shouldn't kill people, no matter who they are. Others are worried about executing the wrong person. I disagree with the former argument. As for mistakes - only those who are murderers without any doubt should be sentenced to death. If you are only 99.9% sure someone is guilty, send him to life in prison.
There is absolutely no doubt that Breivik committed the murders, at least the ones at the youth camp. Too bad he won't be given the same treatment as Timothy McVeigh.