Odessa Carey's heartbroken brother says he knew for years she would kill their mum one day, but still could not get his mentally ill sister the help she needed.
Lawrence Crook says he warned medical professionals that Carey was dangerous for years, before his predictions finally came true with unimaginable horror.
Carey, who had repeatedly told doctors that her real mum had been replaced by some sort of imposter, killed her mother, at her Ashington home in April 2019.
