State Forest. Third and fourth victims In October 1993, a local man searching for firewood discovered bones in a particularly remote section of the forest. He returned with police to the scene where two bodies were quickly discovered and later identified as Gibson and Everist. Gibson's skeleton, found in a foetal position, showed eight stab wounds. A large knife had cut through his upper spine causing paralysis, and stab wounds to his back and chest would have punctured his heart and lungs. Everist had been savagely beaten; her skull was fractured in two places, her jaw was broken and there were knife marks on her forehead. She had been stabbed once in the back. The presence of Gibson's body in Belanglo puzzled investigators as his camera had previously been discovered on 31 December 1989, and his backpack later on 13 March 1990, by the side of the road at Galston Gorge, in the northern Sydney suburbs, over to the north. Fifth, sixth and seventh victims On 1 November 1993, a skeleton was found in a clearing along a fire trail in the forest during a police sweep. It was later identified as that of Schmidl, and bore at least eight stab wounds: two had severed her spine and others would have punctured her heart and lungs. Clothing found at the scene was not Schmidl's, but matched that of another missing backpacker, Habschied. The bodies of Habschied and Neugebauer were then found on a nearby fire trail, on 4 November 1993, in shallow graves apart. Habschied had been decapitated, and despite an extensive search, her skull was never found. Neugebauer had been shot in the head six times. There was evidence that some of the victims did not die instantly from their injuries. Search for the serial killer In response to the finds, on 14 October 1993, Task Force Air, containing more than 20 detectives and analysts, was set up by the NSW Police. On 5 November 1993, the NSW government increased the reward in relation to the Belanglo serial killings to $500,000. Public warnings were also given, particularly aimed at international backpackers, to avoid hitchhiking along the Hume Highway. After developing their profile of the killer, the police faced an enormous volume of data from numerous sources. Investigators applied link analysis technology to Roads & Traffic Authority vehicle records, gym memberships, gun licensing, and internal police records. As a result,