He can’t be in general population for five minutes.
So he’ll rot away over many decades, like the old-timer who helped the Count of Monte Cristo dig his way out.
22 years plus 35 means he’ll be 57 when he sees freedom again. If ever.
My understanding is once the trial ends so does the single cell.
I heard they can be released after serving a third of their sentences, but I dont know how likely that is in this case.