Ava had been hanging out with a group of girls on Merseyside when they encountered another group of children, one of whom began filming the schoolgirl dancing.
The 12-year-old was stabbed in the neck after hanging out with a group of girls hours after the event in Liverpool city centre on November 25 last year.
Family of Ava White cry in court as video of stabbing played manchestereveningnews.co.uk - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from manchestereveningnews.co.uk Daily Mail and Mail on Sunday newspapers.