In the 1995 thallium salt poisoning case at Tsinghua University, known as the "Zhu Ling case", which shocked the whole country, Sun Wei was a widely discussed figure. She is the only officially recognized suspect in the case, but there is no conclusive evidence to confirm her guilt. This case has not only attracted much attention because of its bizarre plot and complex investigation process, but also caused a lot of controversy and discussion because of the ** of Sun Wei's identity and background.
Sun Shiyan, formerly known as Sun Wei, is a female student in Class 2 of Physics and Chemistry of Tsinghua University. She was of Han nationality and was a student with excellent character and learning at the time of the crime, and she was also a national second-class swimmer. She allegedly joined a chemical research group that needed thallium salts before the incident, and this information became one of the reasons why she was the prime suspect.
The reason why Sun Wei is listed as the biggest suspect is mainly because of the possibility that she has been exposed to thallium salts. According to Tsinghua University, only her chemistry research group has access to the toxic substance. However, this statement is not rigorous, because thallium salts are not only obtained through this route, and thallium salts may also be found in other laboratories or external sources.
Between 2005 and 2013, Sun Wei issued three clarification statements in the Tianya community, denying that he was involved in Zhu Ling's poisoning. The statements underscored her innocence and tried to explain why she was considered a suspect.
Although Sun Wei has made several statements to prove her innocence, the public remains skeptical about whether she is involved in the case. This mainly stems from the following aspects:
1.Is Sun Wei motivated enough?According to some reports, Sun Wei may have been jealous of Zhu Ling, who showed great talent in all aspects.
2.Are there human factors that have affected the progress of the case?Some believe that Sun Wei's prominent family background may have had an impact on the fair handling of the case.
3.Lack of Evidence Chain: While Sun Wei is believed to be the only suspect, there is no conclusive physical evidence pointing directly to her so far.
To this day, the "Zhu Ling case" remains unsolved, and Sun Wei's true identity – whether he was an innocent victim or a hidden perpetrator – remains a mystery. As technology advances and new evidence may surface, perhaps one day we can unravel this decades-long mystery and give victims and the public a satisfactory answer.
Sun Wei, as the focal point in the "Zhu Ling case", his identity and background have sparked countless speculations and debates. However, what we must not forget is that the truth is what matters. Regardless of whether Sun Wei is involved in the case or not, we hope that the judiciary will treat everyone fairly and let justice be demonstrated.