(AP)- A man convicted of murder last year in a notorious drunken driving case that killed a wedding limo driver and 7-year-old flower girl was indicted today on charges that he tried to corrupt a DNA test taken during the trial.

Martin Heidgen was indicted on one count of tampering with evidence after prosecutors said a DNA sample revealed the presence of not only Heidgen's genetic profile, but that of another inmate at the Nassau County Jail.

If convicted, Heidgen could see four years added to the 18-year sentence he's already serving. Heidgen will be arraigned tomorrow in Nassau County Court.

His trial was thrown into a momentary uproar after a DNA sample revealed two male genetic profiles. The trial judge had ordered the test to confirm that disputed blood samples taken from Heidgen after the crash were his.

A second DNA test confirmed that the blood taken after the crash was Heidgen's.

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