Perhaps it would have been good to keep him alive but to force him to confront some of the survivors, or the relatives of his many victims?I would have locked him up in humane conditions.
That would have knocked him down a few pegs, it would have served to humiliate him if nothing else
Let them shout in his face and force him to grovel
All the better to capture it all on film
Every day for the rest of his life make him confront 100 survivors or relatives of his victims, from all over the world. Poland, Russia, France, Coventry...
This would show him up as a miserable, pathetic individual
Restorative justice - Wikipedia
When that horrible baby-killing nurse refused to attend the victim impact statement part of her trial there were calls for defendants to be forced to face their victims, to be manhandled out of their cell and into the court if necessary
I would agree with this