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犯罪手法层出不穷，破案手法也日新月异。法医人类学和鉴证学自诞生以来，更是随着科技的进步不断发展，仅仅依靠骨头就能在最残忍的凶杀案中发挥关键作用。 约翰·韦恩·盖西是一名美国连环杀手和强奸犯。他在1972年和1978年之间，对至少33名年龄由14岁至21岁的男孩及年轻男性进行了性侵犯和谋杀。盖西先后将26名受害者埋在他家的供电管道空间，3名埋在他房产的其他地方，并将最后4名已知的受害者的遗体丢弃在附近的河里。 In 1978 the grisly discovery of a crudely buried collection of skeletons beneath a house in Illinois led police to one of the most notorious serial killers in US history: John Wayne Gacy aka the ‘Killer Clown’. Accused of 33 murders, Gacy was known for his appearances at charitable events and children’s parties dressed as ‘Pongo the Clown’. With a staggering number of human remains to identify, investigators turned to expert forensic anthropologist Dr. Clyde Snow for help – and in doing so, paid a debt to the ground breaking CSIs who used similar techniques to convict the murderous ‘sausage king of Chicago’ almost a hundred years earlier.