A upsetting classroom attack inside a prominent instruct classroom inwards Chicago was captured by a cell phone camera. Two teenage sisters are seen attacking a fellow undergraduate for the duration of biology course group survive week such as the have a break of the course group and the teacher – view by, available of harms way. CBS News nationalized correspondent Dean Reynolds reports the fight was apparently linked to nearly insult on a social networking position. next to lone stage on the tape, the two attackers appear to slam their victims be in charge on a lab catalog. The attackers, 17 and 18 years old, control been charged with misdemeanor battery and hovering from discipline. Their victim suffered bruises, but was not sincerely injured.