Ok, what about this hypothetical? (sorry if it’s graphic, but I’m trying to isolate the principle, and crimes irl can be very brutal)
A very wealthy man who hates someone, Mary, deliberately rapes, tortures, and murders her entire family. He also sexually assaults and tries to murder Mary by setting her on fire, but she survives with severe permanent injuries.
Assume we have perfect technology that tells us he fully understood what he was doing, deliberately wanted to cause as much suffering as possible, is now genuinely remorseful, and with certainty will never violate anyone’s rights again. Also assume he pays every form of restitution that can possibly be paid: all medical care, therapy, lost income, lifelong assistance, legal costs, and millions in additional compensation. Obviously the dead can’t literally be restored, so assume we’ve gone as far as restitution can possibly go.
At that point, would justice require letting him go free once restitution is complete and we know he poses zero future danger?