Police believe they have the Long Island serial killer in custody more than a decade after remains belonging to at least 10 people were discovered near Gilgo Beach, N.Y.

Rex Heuermann, a 59-year-old man from Massapequa Park, was arrested on July 13 in connection to the murders of three women, according to officials. He was charged with three counts of first-degree murder and three counts of second-degree murder, pleading not guilty to all at an arraignment on the following day, per NBC News.