Why? According to relevant information, Tsinghua University had a thallium poisoning incident in the 60s, and this fact was confirmed by Professor Li Shunwei, thus proving that Zhu Ling was not the first victim of thallium poisoning at Tsinghua University.
Zhang Zhan's personal information is almost impossible to find on the Internet, except for 1-2 articles about the death of Zhang Zhan at Tsinghua University. A report originally published in the December 2005 issue of the Essence of Literature and History detailed the young man's death file. He was a young man who graduated from Tsinghua University and was found dead on May 11, 1963, in a dilapidated single dormitory in his unit. Sadly, he was only 34 years old at the time, and if he survived, he would have been a 76-year-old man.
According to investigators Li Wenfa, Ma Jie, and Zhang Bingzhong on May 13, 1963, Zhang Zhan's residence was rarely visited because of the old environment and the unpleasant stench.
Phoenix.com once reported that the cause of Zhang Zhan's death was suspected to be poisoning, and he was the son of Sun Yueqi's friend. Is this the thallium poisoning case of Tsinghua University in the 60s?
Zhang Zhan, a poor young man, was admitted to Tsinghua University in 1949 with excellent results. However, on the eve of the liberation of the country, Zhang's immediate family moved to Taiwan and the United States, but remained on the mainland because of their studies at Tsinghua University. During his studies at Tsinghua University, he was helped by Sun Yueqi, and the two had a close relationship.
There is a special relationship between Sun Yueqi and Zhang Zhan's father, Zhang Zikuo. After 1949, when Zhang Zhan was studying at Tsinghua University, he often visited Sun Yueqi's house. Between January 1951 and April 1952, "a certain amount of money was taken from the thallium family every month to support Zhang Zhan's completion of his studies, and after the launch of the Three Anti-Anti Movement, he severed economic relations." This shows that Zhang Zhan's life situation is not easy.
Background information about Sun Yueqi shows that before the founding of the People's Republic of China, he was the director of the Kuomintang's ** Resources Committee and was Zhang Zikuo's superior. On the eve of the liberation of Nanjing, Sun Yueqi was entrusted by Chiang Kai-shek to be responsible for relocating the factories and mines of the Resources Committee in Shanghai, Nanjing and other places, as well as their material property, in three ways. When he joined the **People** work, he handed over a batch of archival materials and personal property.
According to Zhang's confession to the organization, before 1951, he maintained correspondence with his parents, brothers and sisters through his father's friends, and "learned some information about his father from Sun Yueqi." As a result, Sun Yueqi, Zhang Elian, and the relatives of the Zhang family on the mainland were investigated to varying degrees.
Zhang Zhan has said that he was poisoned, and that his food and water contained poisons, but there is no record of what disease he eventually died of. On the day of his death, he had been groaning in pain, calling for help but no one heeded, and finally the case was closed only for chronic malnutrition.
Zhang Zhan's death raises the question of whether someone did it deliberately? What is unbelievable is that his social circle is related to Thallium. Zhang Zimin's youngest son, Zhang Zhan, was the first case of thallium poisoning in the history of Tsinghua University in the 1960s. Zhu Ling, the youngest daughter of Wu Chengzhi, a colleague of Thallium Master, was the second case of thallium poisoning at Tsinghua University in 1994 and 1995. Shockingly, the two victims were treated by the same medical specialist**.
After thallium poisoning, Zhu Ling struggled in the hospital and was at large).
Zhu Ling's mother expressed affectionately: "Ling Ling has accompanied us with his life for 30 years!" This touching sentence made countless people feel emotional.
After Chen Zhenyang's final identification, the evidence is ironclad that Zhu Ling's death was caused by human poisoning, and it happened at least twice. The amount of thallium in Zhu Ling's nails was as high as 22,824 milligrams, more than 10,000 times the normal level, which was enough to be fatal, but she survived tenaciously for 30 years.
Zhu Ling resolutely chose to insist on living, with the only purpose of accompanying her parents. In the pain of losing her own sister, she knew that if she also left, it would bring endless pain and confusion to her parents.
In the face of the unsolved mystery of the Zhu Ling case, should we regard it as a great shame for Tsinghua?
Perhaps, this thallium poison case is like "yesterday" in history, and the story of crime continues to repeat.
This is not so much a shame for Tsinghua as a shame for the whole society. The country will stand on the side of justice, and the law will always uphold justice. I believe that the people of the whole country will unite to find out the truth, so that the deceased can rest in peace, and all the people of the country will be able to calm their anger in justice.