Police are investigating if Christina was killed in a random attack.

 A man believed to have stabbed a 16 year old girl on her way to school yesterday morning is continues to be questioned over her death and Extra police are patrolling bus routes in Birmingham city centre

 Christina Edkins was stabbed yesterday on her was to school to take her mock exams when she was stabbed on board the bus on Hagley Road while on her way to Leasowes High School in Halesowen.

Christina's head teacher Neil Shaw described her as a "bright and popular student" who was "much loved by staff and students".