As I pointed out, people who can blow up into a murderous rampage are not best served in a jail. A secure hospital and medication under supervision of a specialized doctor work so much better. And it's safer for all involved....
And as I've pointed out, if anyone can find a reliable way to identify which ones are going to go wonky before they do so, let us all know. Because I can't think of a way. All I keep hearing is 'well, there must be some way of identifying...' Well, there isn't. I mean, if there is, let's hear it. I'd be all for it. Long time ago, there was a pseudo-science called phrenology that claimed to be able to identify criminal types based on the lumps and bumps and general shape of their skulls; seriously. We know that's bunk now...but we don't have anything better to replace it with. It is possible to identify the really crazy ones in some cases...but in many cases, it just isn't possible. So instead of continuing to say 'lock up the crazy ones', tell us how to identify them.