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A killer who stabbed a pregnant woman to death had been allowed to leave a mental health unit despite being 'very psychotic' and telling doctors that he was descended from dinosaurs, an inquest heard today.
Ryan Blacknell, 28, had agreed to visit the Campbell Centre in-patient mental health unit days before attacking Ella Parker while she was decorating the nursery at her home in December 2017.
An inquest before Dr Sean Cummings today heard that Blacknell's mother had called police saying that he had threatened with her a knife.
While at the mental health unit, he told medical staff that he believed he was descended from dinosaurs.
Though community psychiatric nurse Celestina Onah recommended he stay in hospital for 48 hours, she did not have 'concrete reasons' for him to be detained under the Mental Health Act – meaning he was allowed to leave.
Blacknell later stabbed Miss Parker 33 times with a screwdriver at her flat in Milton Keynes, killing the 29-year-old and her unborn
