Cy Walsh may have been experiencing a drug-induced psychosis when he allegedly murdered his father, Adelaide Crows coach Phil Walsh, a court has heard.
The 26-year-old was not present when his case returned to the Adelaide Magistrates Court on Wednesday following several media applications for access to witness statements and photos.
Magistrate Elizabeth Sheppard refused the requests but suggested to defence and prosecution counsel that an agreed clarifying statement could be helpful.
"You may wish to summarise the case," she said.
"There has been a great deal of speculation on this case, which is unfortunate.
"A question remains as to whether there may be a drug-induced psychosis.
"Whether drugs may have played a role in the defendant becoming acutely unwell."
Cy Walsh is in custody in a secure mental health facility in Adelaide after being charged with his father's murder in July.
Network Ten was among media groups that applied for access to various documents, including selected eyewitness statements and photos.
The network told the court publication of carefully selected material would clear up a lot of the online speculation about the night the AFL coach was stabbed to death at his Somerton Park home.
But both prosecution and defence representatives urged Ms Sheppard to refuse the applications, saying evidence was still being collected in the case.
"There may be material there that never sees the light of day in court," Defence counsel Greg Mead said.
Mr Mead said the public did not have the right to know the filed material at this "very preliminary" stage.
"There may be public curiosity but that's a different thing to public interest," he said.
Ms Sheppard said she did not want to feed the speculation.
"Some material has the capacity to distort or exacerbate what may be out there," she said.
Walsh is due to appear in the Adelaide Magistrates Court on November 3.
