Who sent the mysterious text message about Fudan poisoning case?

China Net News said: "Everyone noticed in relevant media reports that it was a brother of Huang Yang who finally determined the source of the poisoning. He received a short message from a strange number, saying that he should pay attention to a chemical drug, so he locked in a series of names that we later learned. According to the reporter's interview, some classmates and brothers, including the school, said that this short message exists. This short message is the key to finally locking Lin as a criminal suspect and finally finding out the cause of poisoning. "

Assuming that the owner of the strange number is X, the information obtained is as follows:

1.x knows Huang Yang's illness, including his illness and symptoms, and even he judges that these may be related to a chemical reagent (indicating that he has medical diagnosis knowledge, probably from a medical school).

2. The chemical reagent X suggested by X should be familiar with, especially the consequences caused by the reagent, and have an expectation of the role of human beings or animals (so many doctors have no clue, which can explain that this is unconventional poisoning, and the role of unconventional poisoning is still very clear. I'm afraid only researchers or people who have been in contact recently, Lin's tutor or other researchers related to his experiment may be suspected)

Even X has judged/known that the chemical substance is N- dimethylnitrosamine, but he only said it is a chemical substance to hide his identity (few people know this medicine);

3.x knows or can get Huang Yang's brother's phone number, which can be found through the relevant files of the school and the inquiry between classmates. Generally speaking, it is not easy for outsiders to do it.

4. Some people say that Huang Yang lived with his younger brother day and night, but he got to know his elder brother by SMS, which may indicate that X is very familiar with Huang Yang's elder brother, at least he knows his name and telephone number, and he can check it again in various ways.

X doesn't want anyone to know who he is.

He may even think that someone poisoned him. Someone is likely to have something to do with his own experiment. Is it a student or a partner? So he didn't say who he was. If ordinary people infer the possible truth, they will excitedly report the results of the investigation and ask, "Do you think XXX is poisoned?" Only clear people will remind you.

To sum up, I think that if Lin's crime is true and the text message is not sent by himself, then X must be a medical student. This person not only knows the reasons behind Huang Yang's symptoms, but also may have judged the type of drugs. But he can't talk about it, so this person is probably inextricably linked with Lin, at least they know each other.

At the same time, this person can also find out the telephone number of Huang Yang's brother.

So I think it's probably Lin's tutor or other counselors who know Lin:

1. He directed Lin's experiment. Of course, he knows the toxicity and symptoms caused by drugs (because they use this model to do experiments).

2. He can check the students' basic information through the school intranet or other structures, so that he may know the telephone number of Huang Yang's brother, or he can check his brother's number through a teacher in Huang Yang.

He judged by himself that it was Lin's murder. But as a teacher-student relationship, it is not suitable for reporting, so I don't want people to know.