The hearing will determine whether DNA evidence allegedly linking the accused Gilgo Beach serial killer to victims will be admissible at trial.

Suspected Gilgo Beach serial killer Rex Heuermann returned to court on Long Island, where a judge set a date for what's called a Frye hearing.

Rex Heuermann attended a conference hearing, where his lawyers replied to the Suffolk County prosecutors' opposition to their attempts to try the murders separately.

Suffolk County prosecutors said they’re done investigating accused Gilgo Beach serial killer Rex Heuermann — and are now focused on getting a conviction at his trial.

The decades-long search for the man behind the notorious Gilgo Beach killings is now the subject of a new Netflix docuseries.