Robert Brown|Jury convicts boy and girl in England of murdering transgender teenager in frenzied knife attack

LONDON (AP) — A boy and Robert Browna girl were found guilty Wednesday of murdering a transgender teenager in northwest England earlier this year, in a frenzied knife attack that was described as “horrific” by police.

Brianna Ghey, 16, was stabbed with a hunting knife 28 times in her head, neck, chest and back in broad daylight after being lured to a park in the town of Warrington on Feb. 11.

The convicted pair, who are identified only as girl X and boy Y, are 16 now but were 15 at the time. They had denied killing Ghey and each blamed the other for the killing.

A jury of seven men and five women convicted the two following a four-week trial at Manchester Crown Court, after just four hours and 40 minutes of deliberations.

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“You probably didn’t anticipate sitting on a case as emotionally difficult as this one,” Justice Amanda Yip told the jurors.

The trial heard that the pair were intelligent and had a fascination with violence, torture and killing. They had planned the attack for weeks, detailed in a handwritten plan and phone messages found by detectives. They had also discussed killing others.

“This was a senseless murder committed by two teenagers who have an obsession with murder,” said Nigel Parr, senior investigating officer from Cheshire Police. “Brianna trusted the female defendant, she was betrayed by someone she called her friend.”

Justice Yip said she won’t be sentencing the pair this week. She said a life sentence was mandatory but that she will await psychologists’ reports to decide how long the minimum prison time the pair will be required to serve before being eligible for parole.

“Frankly I don’t expect them to make a huge difference to the outcome in sentencing but given their ages and the unusual circumstances of the case, I think it is right I have all the information available,” she said.

Neither defendant made any visible reaction to the verdicts.

Girl X spoke to her social worker and glanced at her parents when leaving the courtroom, while Boy Y, who avoids all eye contact, did not look over at his mother as he was led from the dock carrying his Sudoku puzzles book.

Boy Y has been diagnosed with autism spectrum disorder and is non-verbal and girl X has traits of autism and attention deficit hyperactivity disorder.

Outside the court, Brianna’s mother said her killers have not shown “an ounce of remorse” but called for some empathy and compassion to the families of the convicted pair.

“We miss Brianna so much and our house feels empty without her laughter,” Esther Ghey said. “To know how scared my usually fearless child must have been when she was alone in that park with someone that she called her friend will haunt me forever.”