Life sentences

So I’m watching this documentary about a crime and one of the people convicted got sentence to Life plus 40 years.

Now, here’s my thought: what happens if you get sentenced to something like that, but you’re a Highlander or a Vampire?

You’re basically immortal and never die. What happens if someone shanks you in prison and the doctor in prison pronounces you officially dead. At this point, do you stop serving the life sentence and then ¬†start serving the forty years?

Or are you basically screwed and going to stay there far, far longer than ¬†anyone expects you to? (Since they expect you to die at some point while you’re in there…)

And, here’s another thought…

Once the prison system realizes what you are, do they call it even at some point, since you will continually cost them money?

Just wondering…