There isn’t anything that can be done to them that will change what they did. They deserve life in prison, and if they have awful things happen to them while in prison, so be it.
I also think the news stations here in CT, where this horrible crime happened, should stop showing photos and scenes from the crime. It’s bad enough knowing what happened, but I can’t even watch the news because the photos they show are so disturbing. For example, right on the home page of one local news station there’s a photo of a bed with ropes tied to it. The mattress is one big, black scorched mess. It’s awful, and they don’t need a photo like that to accurately report on the case. :(