"But the fullest recognition of the horror of the crime and the most complete lack of sympathy with the criminal cannot in the least diminish our horror at the way in which it has become customary to avenge these crimes and at the consequences that are already proceeding therefrom. It is, of course, inevitable that where vengeance is taken by a mob it should frequently light on innocent people, and the wrong done in such a case to the individual is one for which there is no remedy. But even where the real criminal is reached the wrong done by the mob to the community itself is well-nigh as great."