Mark Andrew Langley, aged 18, murdered in February 1982. His mutilated body was found in scrub in the Adelaide foothills nine days after his disappearance. Among the mutilations was a wound that appeared to have been cut with a surgical instrument that went from his navel to the pubic region and part of his small bowel was missing. The hair around the area had been shaved as it would have been in an operation in a hospital. The post-mortem revealed that Langley had died from a massive loss of blood from gross injuries to his anus, similar to Barnes. The sedative-hypnotic drug Mandrax, popular in the 1970s disco scene, was found in Langley's blood.
