Pupil 'killed teacher and hid her body in a wheelie bin'

Philip Chism, who was only 14 at the time, is accused of murdering Colleen Ritzer, 24, in October 2013.

Surveillance pictures show a hooded figure follow the algebra teacher into a bathroom where she was killed at Danvers High School in Massachusetts, US.Now 16 years of age, he’s being tried as an adult and has pleaded not guilty to charges of murder, aggravated rape and robbery.