The reasons behind targeting Brianna remain elusive, yet a disturbing revelation emerges from the thousands of uncovered text messages between the perpetrators. It appears their motive for the murder was nothing short of a twisted quest for "fun" in their own sociopathic realm.
From The Guardian UK:
One killer called the other a “sociopath”; while her partner-in-crime said she was “not a normal person” who would “joke about dead babies”.
Despite this, or perhaps because of it, the girl and boy who murdered Brianna Ghey were firm friends, having met at school aged 11.
They were close enough to trust each other to keep their terrible secret: that they – two 15-year-olds with no previous convictions and apparently conventional home lives – were going to murder Brianna in February this year.
At first they planned to give her a cocaine overdose, before deciding they could not afford the drug. “Let’s just stab her. It’s more fun,” said the girl, known as X to protect her identity, in one of thousands of text messages exchanged before and after the murder.
Though she had no previous convictions, Girl X did have a history with illegal substances, having been excluded from school for giving drugs to a younger pupil.
Why she and the boy – named Y – targeted Brianna is still not clear, even after a three-week trial in which the children gave evidence and blamed each other for the stabbing in Culcheth Linear Park in Warrington.
These are two individuals grappling with severe mental disturbances, evidently feeding into their own darkest thoughts. It's unfortunate that their paths crossed, leading to the tragic end of Brianna Ghey's young life.