The son who stabbed AFL coach father Phil Walsh in a frantic knife attack is back in full custody after a deterioration in his mental health

The man who stabbed his own father to death while suffering from severe mental illness is being locked up in full custody after an apparent deterioration in his condition.

Cy Walsh, 34, killed his father, former Adelaide Crows coach Phil Walsh, in July 2015.

The courts found Cy to be mentally incompetent and suffering from undiagnosed schizophrenia at the time of the shocking attack, and the state has since held Mr. Walsh in a secure psychiatric facility.

In 2021 he was granted permission to leave the facility for unsupervised day trips to Adelaide, but on Wednesday Judge Anne Bampton revoked that provision over concerns about Cy’s mental stability.

A photo of Cy Walsh from his Immanuel College 12th grade yearbook. Image: Included

Cy Walsh stabbed his father Phil Walsh to death in a wild attack in 2015

She set a six-month review period to assess Cy’s mental state, with a hearing scheduled for April 9, 2024.

Attorney Trish Johnson, representing Cy, did not object to the order but noted there was no indication that her client had breached or violated the terms of the order.

“I would seek your honor’s permission so that we can contact the chambers and request early listing should his mental health stabilize before the end of six months,” she said.

The Crown did not object to Ms Johnson’s application.

Phil Walsh was 55 years old at the time of his death.

Cy resides at the secure James Nash House facility in Adelaide’s north.

He appeared in the Adelaide Supreme Court via video link wearing a surgical mask covering his face.