This is a weird idea, but hear me out.

I'd like modders to tell me if it would be possible to make kind of a "supernatural" type of prisoner (before i jump down the rabbit hole):

- They arrive as normal intake, they could arrive as any prisoner but the concept is more intented for death row.
- They are immortal, if you try to execute them, it will not work, if they end up in a riot, they can be subdued, but killing them is not possible.
- Executing them is actially going to make things worse because not only will they survive it, but they will also get into a frenzy.

So yeah, I'm not asking anyone to do this for me, but is it even possible with the tools we have? And in a non "horrifyingly hacky and complex" fashion?