Bailey Gwynne: 'Killer warned about carrying weapons before'

Cults Academy head teacher said Bailey Gwynne's killer had been reminded about the dangers of weapons when he was in second year.

Anna Muirhead told BBC Scotland that the boy, who cannot be named, was "well aware of the consequences, he was well aware of the school rule and the legal situation of carrying weapons and he didn't give us any reason to think that he didn't understand".