The brother of former EastEnders actress Gemma McCluskie, found dead in a canal, now accepts responsibility for killing her, the Old Bailey has heard.
Tony McCluskie, 35, will now face trial on the issue of whether her death was murder or manslaughter, a judge said.
McCluskie, who lived in Peter Street, Hackney, east London, with his 29-year-old sister, was due to face trial next month.
But the trial has been moved to January 14 next year, following the discovery of Miss McCluskie's head in the Regent's Canal near her home on September 9.
McCluskie, who appeared by videolink, was remanded in custody at the Old Bailey.
Miss McCluskie's headless and limbless body was found floating in the canal in March.
She had been missing for a week after attending the £650 million opening of the Royal London Hospital in Whitechapel, east London.