Miss Pearman's body was found by a lorry driver at about 3.50am. She was last seen alive in Rouen Road, Norwich, at 1.15am the same day.
At the time of the initial investigation, DNA samples were taken and loaded onto the national database but no match has yet been found.
Over the years, more than 4,000 people have been interviewed and hundreds of men provided DNA samples for testing.
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Bitterly cold tonight, but mostly dry.
Houses near the cliff edge at Hemsby in Norfolk evacuated as the danger from high tides and hig winds increases
Cold and windy with snow showers dying out.