Ryan Armstrong, 25, was found stabbed outside a property on Burn Close Crescent in Wallsend at 1:53am on Saturday. He was pronounced dead at Newcastle's Royal Victoria Infirmary.
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Nicola Sturgeon said the London mayor's comments that likened Scottish nationalism to racism were a sign of 'desperation'.
Stephen was last seen wearing a black coat, jeans, black hat and was carrying a bright blue nike bag.