A Long Island man who carried out a series of murders known as the Gilgo Beach killings has pleaded guilty to murder charges. Rex Heuermann’s pleas Wednesday bring finality to the long-unsolved case more than 30 years after the first killing. The 62-year-old New York architect pleaded guilty to three counts of first-degree murder and four counts of intentional murder in the killings of seven women between 1993 and 2010. He also admitted to killing an eighth woman. He will be sentenced in June to life in prison without the possibility of parole. Victims’ families expressed relief that their relatives got justice.