Zhu Ling (1973)
Encyclopedia
Zhu Lingphoto is best known as the victim of an unsolved 1995 thallium poisoning
Thallium poisoning
Thallium and its compounds are often highly toxic. Contact with skin is dangerous, and adequate ventilation should be provided when melting this metal. Many thallium compounds are highly soluble in water and are readily absorbed through the skin. Exposure to them should not exceed 0.1 mg per m² of...

 case in Beijing
Beijing
Beijing , also known as Peking , is the capital of the People's Republic of China and one of the most populous cities in the world, with a population of 19,612,368 as of 2010. The city is the country's political, cultural, and educational center, and home to the headquarters for most of China's...

, China
China
Chinese civilization may refer to:* China for more general discussion of the country.* Chinese culture* Greater China, the transnational community of ethnic Chinese.* History of China* Sinosphere, the area historically affected by Chinese culture...

. Her case was reported to the public via an Usenet
Usenet
Usenet is a worldwide distributed Internet discussion system. It developed from the general purpose UUCP architecture of the same name.Duke University graduate students Tom Truscott and Jim Ellis conceived the idea in 1979 and it was established in 1980...

 newsgroup by her classmates, and was subsequently picked up by news networks all over the world. Her case was reviewed by physicians in many different countries who examined her symptoms and made suggestions as to diagnoses and treatment. Her life was ultimately saved, but she suffered serious neurological damage and permanent physical impairment.

The incident recently received new attention from the media due to calls for a new investigation and public attacks on the suspected poisoner. Many Chinese students are said to be aware of her case.

Poisoning case

In 1994, Zhu Ling was a sophomore in Class Wuhua2 (Physical Chemistry
Physical chemistry
Physical chemistry is the study of macroscopic, atomic, subatomic, and particulate phenomena in chemical systems in terms of physical laws and concepts...

) at Tsinghua University
Tsinghua University
Tsinghua University , colloquially known in Chinese as Qinghua, is a university in Beijing, China. The school is one of the nine universities of the C9 League. It was established in 1911 under the name "Tsinghua Xuetang" or "Tsinghua College" and was renamed the "Tsinghua School" one year later...

 in Beijing. Classmates described her as attractive, intelligent, and talented, with an interest in music. She began to show strange and debilitating symptoms at the end of 1994, when she reported experiencing acute stomach pain, along with extensive hair loss. Following her hospitalization at TongRen Hospital, her condition gradually improved and she was allowed to return to school. The following March, however, her old symptoms returned worse than before, this time accompanied by pain in her legs, loss of muscular eye control, and partial facial paralysis. Unable to breathe on her own, she was placed on a respirator.

One physician at Peking Union Medical College Hospital
Peking Union Medical College Hospital
Peking Union Medical College Hospital is a renowned general hospital in Beijing, China. It was founded in 1921 by Rockefeller Foundation and is affiliated to both Peking Union Medical College and Chinese Academy of Medical Sciences ....

 (PUMCH), Dr. Li Shun-wei, reported having diagnosed a similar poisoning case in the 1960s and strongly suspected that Zhu Ling's symptoms were caused by thallium poisoning. However, Zhu Ling denied that she had had any contact with thallium in class, a claim which was confirmed by her university's chemistry department. As a result, her doctors ruled out thallium poisoning as a potential cause. Instead, she was diagnosed with and treated for acute disseminated encephalomyeloradiculoneuritis. Her condition deteriorated rapidly.

Diagnosed via Internet

Frustrated with local physicians' inability to help Zhu Ling, friends Cai Quanqing and Bei Zhicheng posted an "SOS" letter on a number of Internet usenet groups describing their friend's symptoms and asking for help with a diagnosis. Responses began pouring in within a matter of hours, and news reports hailed the event as a milestone in Internet culture, especially in China. Of the more than 1,500 responses which Zhu Ling's friends received, roughly one-third proposed that she was suffering from thallium poisoning, the common antidote for which is known as Prussian blue
Prussian blue
Prussian blue is a dark blue pigment with the idealized formula Fe718. Another name for the color Prussian blue is Berlin blue or, in painting, Parisian blue. Turnbull's blue is the same substance but is made from different reagents....

.

Subsequent tests confirmed that Zhu Ling had extraordinarily high levels of the metal in her body. Doctors were able to administer the antidote
Antidote
An antidote is a substance which can counteract a form of poisoning. The term ultimately derives from the Greek αντιδιδοναι antididonai, "given against"....

 in time to save her life, but she sustained serious permanent neurological damage. While she has recovered the ability to breathe on her own, she still cannot speak and remains largely paralyzed and blind, with severely reduced mental function. In addition, she has contracted Hepatitis C
Hepatitis C
Hepatitis C is an infectious disease primarily affecting the liver, caused by the hepatitis C virus . The infection is often asymptomatic, but chronic infection can lead to scarring of the liver and ultimately to cirrhosis, which is generally apparent after many years...

 from a tainted blood transfusion
Blood transfusion
Blood transfusion is the process of receiving blood products into one's circulation intravenously. Transfusions are used in a variety of medical conditions to replace lost components of the blood...

. Once again, her family and friends are using the Internet to seek help for her, but this time they ask for donations to help pay for her care and rehabilitation on a website dedicated to the cause.

Police investigation

The police began investigating the case in May 1995. It was not until January 2006 that police finally revealed to the media that their initial investigations had yielded a possible suspect, Zhu Ling's then-roommate. No explanation was given for the delay in releasing this information, and no one has yet been formally charged in connection with the case. The primary investigator, Li Shusen, told a correspondent from Southern People Weekly in a January 2006 phone interview that investigators have in fact reached some important conclusions regarding the case, but that the information is too sensitive to be released to the public at this time.

The only suspect is a relative of Sun Fuling, one of the former Vice-Chairmen of CPPCC. This case is believed to be blocked because of some political pressures.

Suspect

The only suspect the investigation produced is Sun Wei, who was Zhu Ling's classmate and roommate in Tsinghua University. Tsinghua University also said she was the only student who would have had access to thallium at the school. That aside, it is believed that had it been not because of her political relationships, the case would not be blocked for a dozen years.

While official media coverage of the case remains tightly controlled by the Chinese government, Internet discussion of the crime continues, especially among the overseas students and scholars, who speculate that the main suspect has not been charged due to her family connections. However,Tsinghua University denied her BS certificate and refused to provide her any document needed to get a passport or visa.

The case began to draw extensive public attention near the end of 2005, after an ID named skyoneline posted on one of the largest Chinese online bulletin boards, again questioning the innocence of the suspect and her family's role in blocking investigation and prosecution of the case. In response, after over 10 years of silence, on December 30, the main suspect released a statement proclaiming her innocence.

According to the statement, the suspect was identified as the only student with official access to thallium in her experiment. She was detained by the police department on April 2, 1997, and signed a paper acknowledging she was a suspect. Police released her after 8 hours of interrogation. In her statement, she also claimed that, according to the laws, she was cleared as a suspect in August 1998. However, in a Morning News Post report dated March 2006, Zhu Ling’s lawyer said of the suspect, "She was only exempted from the compulsory measure she was subjected to as a suspect at that time, but not excluded from suspicion."

Since releasing her statement, the former suspect has received tens of thousands of emails from angry protesters. Her telephone numbers, home address, private email exchanges and even personal photos were released in public. Hundreds of people sent emails and faxes to the companies where her family and friends worked. Their home addresses, telephone numbers and personal photos were also released to the public.

External links

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