Girl aged 13 beaten up by a vile bully who pretended to be her friend then warned her 'not to grass'

A vile bully is seen viciously beating up a 13-year-old girl who her mum says pretended to be friends with her in this shocking video.
The footage was captured and then shared on Snapchat by sick crowd members who gathered to watch the attack which was launched after a rumour spread round the school.
The girl, who cannot be named for legal reasons, can be seen beating Demmi, from Tamworth, Staffordshire, as a gang of lads cheer her on.
In the distressing clip, Demmi is seen being repeatedly punched in the head as she lies helpless on the ground, crying and pleading with the girl to stop.... read more