A 34-year-old man who claimed Jesus made him kill his mother has been sectioned under the Mental Health Act.
Carol Weatherley, 54, was found stabbed to death at her home in Needham, near Harleston, Norfolk, on 15 March.
Darren John Weatherley, 34, of the Norvic Clinic in Norwich, admitted manslaughter on the grounds of diminished responsibility.
He was given a hospital order by Mr Justice Bean at Norwich Crown Court who said the case was a tragedy.
The court heard that Weatherley suffered from paranoid schizophrenia.
Det Ch Insp Jes Fry, of Norfolk Police, said: "This was a particularly tragic case in which the family have lost a mother, wife and grandmother and our thoughts are with them at this time."