Sheen was a key player in the heist – a career criminal and the only man convicted of both burglary and selling the gold.
He pleaded guilty last year after police found his DNA at the scene and gold fragments in his clothing.
Police also recovered his phone which contained a wealth of incriminating messages.
Shan Saunders, the senior crown prosecutor on the case, said it was “unusual to have a phone that when downloaded contains so much information”.
