Kim Delaney in the movie 'The Long Island Serial Killer: A Mother's Hunt for Justice' (Lifetime) Police found a body upon searching and ordered a search operation in the entire area. Two days later, police officials found three more bodies in the same area, on the north side of the Ocean Parkway. The law enforcement authorities said that finding four bodies in the same area is “more than a coincidence". The movie will tell the story of Gilbert’s disappearance, police investigation and her mother’s hunt for the serial killer. Release date The 400th original movie from Lifetime, which is a part of the ‘Ripped from the Headlines’ franchise, will exclusively premiere on Saturday, February 20, at 8 pm ET.