A second man has been charged as NSW police continue to investigate the death of a diver they believe was involved in a plot to import cocaine worth $20 million.
Police believe 31-year-old Brazilian national Bruno Borges Martins was a drug mule who drowned near the Port of Newcastle while trying to retrieve about 54 kilograms of cocaine - packaged in waterproof bricks - from a ship or the ocean floor in May.
