Exactly, locking someone away might be unjust to this person, but can be necessary for the greater good of protecting the society. The conclusion should be to l

Exactly, locking someone away might be unjust to this person, but can be necessary for the greater good of protecting the society. The conclusion should be to lock such persons away in a reasonably humane way¹ (and not to sentence him/her to death). ¹ something in this direction: https://en.wikipedia.org/wiki/Halden_Prison https://en.wikipedia.org/wiki/Halden_Prison