[Mz]

A blurb I recall: Upwards of 90% of people on death row have such severe head injuries that you can find evidence of it with an x-ray if there are no medical records.

For some people, "rehabilitation" that does not involve serious medical intervention not currently possible is just not going to solve the problem. No amount of disincentives or will power or whatever is going to help someone behave better if they are literally brain damaged.