[Fungi]

So he kills, MURDERS, all these people and the survivors are forced to pay for his incarceration until he dies? This is justice? NONSENSE!

[colorado tanker]

For his own protection he will probably be put in isolation. Can you imagine spending the rest of your life staring at four walls with almost no human interaction? If you weren’t crazy to begin with you soon would be.

[DoodleDawg]

So he kills, MURDERS, all these people and the survivors are forced to pay for his incarceration until he dies?

Well...had they given him the death penalty the survivors would have been forced to pay for his incarceration till he died, too. This way they just have to pay for it a couple of years longer.