Det Insp Gary Boyd said Lothian and Borders Police are determined to get justice for Mr Brown's family.

BBC: Steven Brown

Nilsson leads by one shot from Italian teenager Matteo Manassero, England's Gary Boyd, and Thailand's Thongchai Jaidee who are all on five-under.

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Det Insp Gary Boyd, of Lothian and Borders Police, said people's "personal circumstances and loyalties" might have changed and they may be in a position to help the investigation.

BBC: New probe into 1999 murder of Steven Brown in Tranent