I was struggling with the concept of what we should have done with him and maybe The death penalty is revenge, not punishment. rings a few bells
But he worked the system and must have got pleasure from that. And he was kept away from the other inmates. Witness what happened to Sutcliff when he encountered other prisoners.

Not sure Brady was much punished, he could have been but any hint of ad hoc retribution would have been big news. The death penalty is revenge, that's for sure. It also is a Darwinian tactic. And I am sure very expensive with 10 years of appeals and incarceration. Opponents love to quote statistics (which make it true?) that it is not a deterrent. It is, but at what percentage? Life ain't binary!

Myra Hindley yearned for freedom and tried to get a bit. She was punished, but also worked a few systems of her own, like being a gay lover in prison! Not binary either!