Gilgo Beach killer pleads guilty; DA Ray Tierney breaks down case on Good Day NY

The decades-long search for answers in the Gilgo Beach serial killer case may finally be over. Suffolk County District Attorney Ray Tierney joins us after Rex Heuermann pleaded guilty to murdering seven women and admitted to killing an eighth on Long Island. Tierney breaks down how the plea deal came together, the evidence that helped crack the case and what comes next. He also discusses the role of DNA, phone evidence, internet searches and documents investigators say linked Heuermann to the killings, as well as what the plea means for victims’ families and other unsolved cases on Long Island.