In this example it was a schizophrenic who shouldn't have been let out alone. Not sure that is the best of examples to use.
Society needs people pushing the boundaries, it is how we eventually grow as a people, once the ideology has been watered down somewhat, to be more reflective of typical people that tend to be middle of the road with a slight left or right leaning.
Unfortunately too much emphasis and airtime has been given to extremes on both ends, party because it's good for ratings and partly because media companies are trying too hard to be seen as balanced.
With the current state of dysfunction the only way authorities can deal with problems is by restricting freedoms and additional nannying. The responsible are always prejudiced by those that are either unable or unwilling to be.
Lowest common dominator stuff.