Case study in safety

The man accused of killing and raping victims is not sentenced to death. After serving time and released, he raped and killed again. Now, according to the court, he was found mentally retarded. He will then spend the rest of his life in jail. Now, how is that justice?

He's incapable of making decisions, but is capable of killing and raping. Will being in jail make him better? I think that here, he does pose a threat to society and I believe strongly killing him would make society safer, regardless of his mental situation.