When a murderer wants to practice medicine

Should a murderer ever be allowed to practice medicine? The question has come into focus in the case of a Nazi sympathizer who entered a famed Swedish medical school in 2007, seven years after being convicted of a hate murder. A killer turned healer might seem to be a shining example of prison rehabilitation. Yet it is hard to think of a case in which a murderer should become a medical doctor. Murder and medical practice are simply incompatible.