The damage has been done. All who were directly involved in this error are going to pay, no question about it. Anything more that could be done to them at this point is like stepping on a spider a second time. The best society can do is try to learn from this experience and help others avoid such an outcome, which doesn't necessarily imply prevention.
I take decent thing as a terminal event.
_________________________
The ultimate result of shielding men from the effects of folly is to fill the world with fools.
-- Herbert Spencer, English Philosopher (1820-1903)