When the victim is seriously ill or a threat to the society they shall be put to sleep without breaking the law. It is better to end one life then let it suffer. It is wrong for one to suffer without intentionally doing something wrong. One of the books that run by this situation is Of Mice and Men. In Of Mice and Men by John Steinbeck, George ended Lennie's life for Lennie's own good and the benefits of the others, so George shouldn't be blamed for murdering Lennie.

George had the right to kill a guy like Lennie, a mentally challenged, physically powerful man, who has no control over his strength. He has caused a lot of problems since he and George started working and every time George had to tell him to stop. This time Lennie did not just cause some problems; he killed Curley's wife...