Ava White died from a 5cm "catastrophic" stab wound to the neck, a murder trial was told.
The 12-year-old was killed on November 25, following an altercation with a boy. Liverpool Crown Court heard today that Ava spent the evening hanging out with friends and the group were seen sharing " small bottles of alcohol, singing, dancing and generally messing around".
A jury were selected on Friday for the trial, which is expected to last around three weeks. The defendant, who for legal reasons the ECHO will refer to as Boy A, was produced on a video link for the opening.
