The 16-year-old girl accused of murdering Brianna Ghey carved her boyfriend’s name into her own arm and once claimed to be a satanist, a jury has heard.
Her co-defendant, a 16-year-old boy known as Y to protect his identity, told police he saw the girl, known as X, stabbing Brianna in Culcheth Linear Park, in Warrington, on 11 February, Manchester crown court heard.
