It's never happened before on "48 Hours Mystery," and maybe not ever in history. One of a serial killer's presumed victims showed up at her alleged killer's trial. Correspondent Bill Lagattuta reports from Rockhampton, Australia. Imagine the nightma... (more)re. Five women and girls were missing. Keyra Steinhardt, age 9; Natasha Ryan, 14; Sylvia Benedetti, 19, Beverly Leggo, 37, and Julie Turner, 39, vanished one after another from this picturesque small city in Queensland.