Eyewitness describes the scene as he saw 'man stabbing a window'

Eyewitness describes the scene as he saw 'man stabbing a window' in a bid to infiltrate 'the school'. In a call with BBC Radio Manchester, Gareth, said he was 'held back in traffic' as he assumed it was a normal collision - but the horrors of what had actually happened soon unravelled as they got closer to the incident.