Strike force detectives investigating the abduction and suspected murder of two teenage girls 40 years ago have made a major breakthrough.
18-year-old Robyn Hickie and 14-year-old Amanda Robinson were abducted at or near bus stops on the Pacific Highway at Belmont North and Swansea within two weeks of each other in 1979
News Limited reports police are now looking into the movements of a 58-year-old successful businessman who currently lives on the Gold Coast.
The former Hunter Valley man was recently granted bail in Queensland over a separate rape and sexual assault offences.
Detectives say a unique, green Holden Torana could also hold the key to proving the identity of the person responsible.
Backpacker killer, Ivan Milat had been a suspect in the girl's disappearance but denied any involvement during an inquest in 2002.
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| Robyn Hickie |
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| Amanda Robinson |
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| Police believe a unique, green Torana could hold a vital clue |
