One part of the story read: "If you love something, set it free. If it doesn't come back to you, hunt it down".
Wilson, appearing via a video link today from prison, denied he wrote the story. He said other inmates had access to his typewriter in his cell.
"I read it today and I was thoroughly disgusted with it," Wilson said. "I asked the officer with me to destroy it."
Wilson agreed he would sometimes type in all capital letters, as this story was.
He said he was not aware of any links in the story with his real life offending.
Clinical psychologist Jane Freeman-Brown told the court Wilson had been unwilling to accept any psychological intervention in prison.
He was a "fairly rare offender" with a high level of deviancy and psychopathy.
His risk was likely to remain the same in coming years, despite his age, and he had "poor impulse control".
At the conclusion of today's court hearing, Justice Graham Lang reserved his decision, saying it was important for Wilson and the community at large.
He will deliver his finding in writing.
