Conversation so far:
What are some important aspects in the development of Chapter 27?
Chapter 27 is based on Let Me Take You Down: Inside the Mind of Mark David Chapman, a book of Chapman's recollections of his act of violence.
Was there any controversy involving Mark Chapman's unraveling depicted in Chapter 27?
In April 2006, an on-line petition group calling themselves Boycottchapter27.org campaigned to pressurise [sic] movie theatres not to show the film, to stop the glorification of a murderer.“

Question: What else happened during this time?
Self-contained rewrite: What else happened during Mark Chapman's incarceration?