Police are appealing for help to find out more about the movements of John Roberts from Winlaton prior to his death.
The 32-year-old was found dead in Gateshead this morning with serious head injuries.
Police are asking for anyone with information to come forward.
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A security guard was threatened with a knife as the pair stole a black cash box before making off in a waiting car.
Skies will clear & temperatures will dip overnight, but the forecast of further rainfall into Tuesday brings risk of flooding, ice and snow
Heavy rain expected, also some snow in the forecast