A 15-year-old Canadian girl from Nova Scotia has pleaded guilty to a vicious, planned attack on a female, autistic student, and an attorney is seeking to ban her from social media as part of her sentencing. The prosecutor said that the girl should be barred from online venues including Facebook, Twitter and Instagram, lest she perpetrate cyber bullying. She forced a second student to film the attack and to post it on Facebook. Police described the girl as the ‘bully of all bullies'”]