The post-mortem will take place later of the 16 year old boy stabbed to death in Pimlico on Sunday. Hani Abou El Kheir was set upon by a gang in a suspected drugs related attack. No arrests have been made
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The campaigners have raised concerns about former undercover officers being granted anonymity during the proceedings.
The Discovery School in Newcastle has said there was "no excuse" for the serious error.