Hong Kong media analysis technology of Baiyin city, Gansu province, murder, DNA testing: find out the murders _ descendants of Confucius | silver news
Gao Chengyong in Baiyin city, Gansu province, and his wife operate canteen. (Image from the network) Reference news, September 2, local media said, mainland China one of the worst serial killers in the decades after the killing was finally arrested for the first time, researchers said, thanks to forensic anthropologists frequently used genetic tests.
According to Hong Kong's South China Morning Post on September 1, the suspect left behind by the blood and semen samples of genetic testing has failed to help track him, but Shanghai's Fudan University researchers used the technique to identify his family's ancestral home village, led police to find him.
On August 26, the Gao Chengyong commissary operating in Baiyin city, Gansu province, and his wife were captured.
Gao Chengyong, now 52, issued by the Chinese Ministry of public security circular said, in more than 10 years time, he later admitted killing and raping 11 women in Gansu and Inner Mongolia.
He was from 1988 to 2002 crime, causing panic in Baiyin city, many women dare not go out alone.
According to the media reports, he dismembered some of the victims, including their hands, ears and genitals. Only his youngest victim was eight years old.
Police found the killer's blood, semen at the crime scene and fingerprints, but has been unable to be captured for decades.
Reported that household registration in Baiyin city in the incident near a large number of men had to undergo genetic testing, but Gao Chengyong was not among them.
Police believe the killer is living in the city a high degree of criminals, not detected in surrounding rural areas.
Earlier this year, the police to modern anthropology Lab of Fudan University for help, make a breakthrough.
Professor Li Hui told the South China Morning Post reporter, police-related "biological material" sent to his team.
Professor Li's team found only in male cells and y chromosome genetic material handed down from father to son. Y chromosome variation, every male line has a unique genetic fingerprint.
They use their technology successes male origins traced to China about 60,000 years ago several men in southern China. They also find a direct male descendant of Confucius in today's China.
The team extracted from the crime scene and y chromosome samples compared with other samples of China's male population.
Higher results than a clan. In Baiyin city, most of the victims were killed only a high family, they live in the Kawamura, far away from the urban areas.
Police in the area to carry out a new round of DNA tests, finalize Gao Chengyong is the suspected killer.
His first victim was a 23-year old woman, according to the police, was killed in her home, got 26 at the scene.
Said Gao Chengyong picked young women living alone, and after trailing their house sex slaying.
Previous media reports that his victims are often dressed in a red suit, he tends to crime during the day.
Professor Li said that his team analyzed more than 1000 copies of material in recent years to help the police, to help narrow the possible living area by criminals.
Professor Li said, the y chromosome cannot be used to explore the female sample, women carry the mitochondrial DNA, which contains genetic information handed down from mother to daughter, and are useful for forensic investigations.
Professor Li said, team y chromosome databases worldwide, especially in China and almost all the major groups in East Asia, there was still room for more data to be stored.
"I hope now we can put the DNA into ID cards. This will make the world safer for all of us, "he said.
Responsible editor: Chen yan SN225
Article keywords:Silver homicide
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港媒分析甘肃省白银市杀人案DNA检验技术:曾找出孔子后裔|白银杀人案_新闻资讯
高承勇在甘肃省白银市和妻子经营小卖部。（图片来源于网络） 参考消息网9月2日报道港媒称，中国内地最恶劣的连环杀手之一在首次杀人的几十年之后终于落网，据相关科研人员表示，这得益于法医人类学家常用的基因检测。
据香港《南华早报》9月1日报道，对嫌疑人所遗留血液和精液样本的基因检测未能帮助追踪到他，但上海复旦大学的科研人员运用该技术查明了其家族的祖籍村庄，引导警方找到了他。
8月26日，高承勇在甘肃省白银市他和妻子经营的小卖部被抓获。
高承勇现年52岁，中国公安部发布的通告称，他后来承认在超过10年的时间里杀害和强奸了甘肃和内蒙古的11名女性。
他在1988年至2002年间作案，在白银市引起恐慌，许多女性不敢单独外出。
根据当时的媒体报道，他肢解了有的受害者，包括她们的手、耳朵和私处。他最小的受害者仅八岁。
警方在犯罪现场发现了凶手的血液、精液和指纹，但几十年来始终未能将其抓获。
报道称，户籍在白银市内多起案发地附近的大批男性都接受了基因检验，但高承勇不在其中。
警方认定凶手是生活在城里的一个高学历犯罪分子，没有在周边农村地区开展检测。
今年早些时候，警方向复旦大学现代人类学实验室求助，由此取得突破。
李辉教授告诉《南华早报》记者，警方把相关“生物检材”送到他的团队。
李教授的团队研究了只存在于男性细胞并由父亲传给儿子的Y染色体遗传学材料。Y染色体会有变异，致使每个男系都有独特的遗传指纹。
他们利用其技术成功地把中国男性的出身追踪到约6万年前来到中国南方的几个男性移民。他们还在当今中国发现了孔子的直接男性后裔。
该团队把从犯罪现场提取的Y染色体样本与中国男性人口中的其他样本进行了对比。
结果他们比中了一个高氏家族。在大多数受害者遇难的白银市只有一个高氏家族，他们住在城河村，距离市区很远。
警方在该地区开展了新一轮的DNA检验，最终确定高承勇是嫌疑杀手。
他的第一个受害者是一名23岁的女子，据警方称，她在家中遇害，身上有26处刀伤。
据称，高承勇专挑独居年轻女性下手，尾随其入室后奸杀。
此前的媒体报道称，他的受害者通常身着红衣，他往往在白天作案。
李教授说，他的团队近年来帮警方分析过1000多份检材，以帮助缩小犯罪分子可能的居住区域。
李教授表示，Y染色体无法用来探究女性检材，但女性携带线粒体DNA，它包含由母亲传给女儿的遗传信息，因而对取证调查是有用的。
李教授说，团队的Y染色体数据库覆盖全球、尤其是中国和东亚的几乎所有主要人群，还有空间存储更多的数据。
“但愿将来我们能把DNA录入身份证。这会让世界对所有人来说都更加安全，”他说。
责任编辑：陈琰 SN225
文章关键词： 白银杀人案
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