Chapter 1: The brave and strong Zhu Ling passed away.
Sub-heading: Mourning for brave alumni.
On December 23, shocking news spread on the Internet, and the news of Zhu Ling's death was heartbreaking. Tsinghua University's official Weibo account released a text of condolences confirming the news. Zhu Ling has been described as a person who has struggled with his illness for many years, and he has always received attention, support and encouragement from many alumni, the community and the school. Tsinghua University expressed deep condolences for Zhu Ling's death and extended sincere condolences to Zhu Ling's family. They hope that Zhu Ling can enjoy the beautiful sound of the piano in another world and go all the way.
Chapter 2: Father's Bitter Farewell.
Sub-heading: The Absence of Justice.
Zhu Ling's father, Wu Chengzhi, was interviewed late at night, and he gloomily said that Zhu Ling passed away at 22:59 on the evening of the 22nd. When asked how he felt about justice, Wu Chengzhi said calmly: "I don't have any special feelings, it's normal." The hospital has also tried its best to save it. We will bury him in Beijing. His answer revealed a deep powerlessness and acceptance of fate.
Chapter 3: The Mystery of Thallium Poisoning.
Sub-heading: Sudden Strange Illness and Fruitless Investigation.
Looking back on Zhu Ling's tortuous experience, he is a 92-level student majoring in physical chemistry and instrumental analysis in the Department of Chemistry of Tsinghua University. He began a strange illness in late 1994 and was diagnosed with thallium poisoning, a highly toxic substance, on April 28, 1995. At that time, all the evidence showed that Zhu Ling had been poisoned by someone, so ** immediately launched an investigation, but the investigation has not progressed, and no clear clues have been obtained so far.
Chapter 4: Suspicion of Approaching the Truth.
Sub-heading: Doubts from dormitory classmates.
Sun, a female student in the dormitory with Zhu Ling, is suspected of being the only person who can legally obtain thallium salt and approach Zhu Ling. Therefore, Beijing ** launched an investigation against Sun, but the investigation faced a series of difficulties. Due to the delay in the release of the thallium poisoning test report, there is no surveillance equipment at the relevant premises, and traces of the crime and physical evidence have disappeared. Despite their best efforts in the various criminal investigative measures available at the time, they were never able to find direct evidence of the suspect. In 2006, Sun issued a statement in which he vehemently denied his involvement in poisoning and noted that he was not the only student who had access to thallium salts.
Chapter 5: Hackers' Aid.
Sub-heading: Hacking and Investigation Revelations.
In 2013, reporters from the Southern Metropolis launched a series of reports in which they revealed some surprising details in Zhu Ling's case. According to the report, a hacker had hacked into the mailboxes of Sun and other classmates and obtained key information about Sun's guidance of several classmates to support her in clarifying the suspicious statement, including important information such as "posting guidelines". The assistance of this hacking provided new clues for the investigation, and provided inspiration and hope for the further investigation of the case.
Chapter 6: The Hope of the Cold Case.
Sub-heading: Difficulties and Opportunities in Solving Cases.
In an interview with Nandu reporters in 2013, they interviewed Detective Dr. Li Changyu. They called these cases that had not been solved for many years "cold cases" and talked about the difficulties in solving Zhu Ling's case. Dr. Li said that it is very difficult to solve the Zhu Ling case, but if he can get the original case file and physical evidence, he may have a chance to solve the mystery of the case. However, there are still significant challenges to achieving this goal.