If you couldn't rise above his level of actions about it, then you should have had at least sense enough to step away and let someone else deal with it. Because victims should never get to prosecute their attackers - even in these circumstances - it leads to vindictive, retributive and cruel punishments. Which this was. And you shouldn't be allowed to do it, or get away with it, just because you think he's learnt something. You can learn things from being killed - doesn't make it right.

I've been tortured by at least one, if not two inmates. Killed by my own. I consulted at least three other wardens before taking action against her for that beyond her initial apprehension.

The fact remains that it doesn't matter that he's learnt something - you also abused his power back at him. That's not an acceptable form of punishment. That's misusing someone, and against themselves. I expect something to be done about it, because yes. You should risen above his actions. If you couldn't, you should have at least admitted you couldn't. I understand it's horrifically difficult sometimes, but that's why you take that into consideration when you're both the victim and the punisher. Instead of going along with something that you've admitted you essentially only did because of what he'd done to you.