I've often said I think the torture chamber model of hell is an overgeneralization. I doubt hell is uniform. I expect the punishments are customized.
That said, there are situations in which an eternal torture chamber would be poetic justice. Assuming this report is true,
I don't have any problem with God consigning the killers to an eternal torture chamber. It's something to keep in mind when sentimentalists object in principle to everlasting "torture".