Police have recovered a weapon from the scene in Edmonton but would not confirm reports that the knife was a machete.
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A grandmother says she was outraged after her grandson was segregated from his classmates by a cardboard screen - for being one minute late.
Leaked documents have revealed the first known picture of Mohammed Emwazi - named as IS militant Jihadi John - as a student in London.
With March just around the corner it's looking like this winter will be the sunniest on record (data goes back to 1929).