The boy had claimed he stabbed the 12-year-old in self-defence in a row over a Snapchat video.
A boy who stabbed a schoolgirl in a row over a Snapchat video has been found guilty of her murder.
Ava White, 12, was fatally stabbed in Liverpool city centre after a Christmas lights switch-on on 25 November 2021.
The 14-year-old, who cannot be named for legal reasons, told Liverpool Crown Court he accidentally stabbed her in self-defence.
He had pleaded guilty to possessing an offensive weapon but was convicted of murder after a trial.
The court heard Ava and her friends became involved in an argument with the teenager and three of his friends after the boys recorded Snapchat videos of her group.
The boy told the court he heard one of Ava’s group threaten to stab his friend if he did not delete a video of Ava.
He claimed he had wanted to “frighten her away” and had not meant to stab her.
He admitted possessing the knife, which the court heard had a 3ins (7.5cm) blade, but denied her murder and manslaughter.
The boy will be sentenced at a later date.