Swansea Crown Court previously heard how the pupil, who was 15 at the time, stabbed teacher Vicki Williams in the head at Milford Haven Comprehensive School in Pembrokeshire in February

Swansea Crown Court previously heard how the pupil, who was 15 at the time, stabbed teacher Vicki Williams in the head at Milford Haven Comprehensive School in Pembrokeshire in…

The court previously heard that the boy approached her desk to ask her to check his work