According to law enforcement sources, a DNA sample taken from the estranged wife of the alleged Gilgo Beach serial killer matches the genetic material found on the remains of victims. Asa Ellerup's hairs were found on the burlap in which the victims' remains were wrapped, and DNA extracted from the hairs matches the cheek swab samples. However, prosecutors have cleared Ellerup of any wrongdoing, as she was out of town at the time of the murders. Meanwhile, the alleged serial killer, Rex Heuermann, has pleaded not guilty to murder charges in the deaths of three women and is also a suspect in the killing of a fourth victim.