(Copenhagen Post) Copenhagen Police have reopened the case into the 1990 murder of 23-year-old prostitute Hanne With after they identified the DNA profile of a possible killer.

The police employed a technique that can enhance small samples of DNA. The technique is proving increasingly common in cold case investigations – so much so that at least 13 unsolved cases have been reopened after the use of the technique has brought about new useable DNA profiles of suspected assailants.

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