Perhaps someone could write a novel from the perspective of Terri. It would indeed be a horror novel.
There are a number of problems with this concept.
1) One would be seen as trying to "cash in" on the tragedy.
2) It presupposes something that has been argued to death, (excuse the phrase), and not resolved -- whether Terri had awareness of her surroundings.
3) It is terribly depressing. I would have difficulty dealing with my emotions before I had completed six chapters.
4) No one would believe that human beings could be so venal and cruel.
5) Terri's perspective is surprisingly limited. Even assuming she had full cognitive function, she was kept well out of the loop of information. Although the very epicenter of everything that was happening, she was always the last one to know.
6) The more I learn about this, the angrier I get. This is not good for my mental health.