NEW YORK (AP) — The suspect in Long Island’s infamous Gilgo Beach serial killings has lost his bid to separate into multiple trials the sprawling case involving seven brutal killings spanning decades.

New York State Supreme Court Justice Timothy Mazzei ruled Tuesday that the trial against Rex Heuermann , a Manhattan architect who lived on Long Island, would move forward as a single trial.

Alleged Gilgo serial killer Rex Heuermann appears in courtroom at Suffolk County Court in Riverhead with his attorney Michael J. Brown on Tuesday, Sept. 23, 2025.

“We wanted one and that’s what we got,” Suffolk County District Attorney Ray Tierney said after the brief hearing in Riverhead court.

Lawyers for Heuermann had argued in court filings that there was no “unique and consistent modus oper

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