A judge in the Gilgo Beach murders case ruled Wednesday that cutting-edge advanced DNA testing can be used in Rex Heuermann's upcoming trial on Long Island.

It marks the first time such evidence could be admitted in a New York court, and sets a new precedent for courts statewide.

The defense immediately challenged the judge's decision, claiming it violates public health law because the lab that conducted the testing is not licensed in New York.

The judge will rule on that challenge on Sept. 23.

The families of some victims were in the courtroom, along with Asa Ellerup, Heuermann's ex-wife.

Heuermann entered the courtroom under heavy guard and with a new haircut.

The judge's 27-page decision is considered a major victory for Suffolk County prosecutors. Astrea Forensics connect

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