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Four hours later, the autopsy work came to an end. According to Brother Ming's instructions, except for the obvious physical evidence to be analyzed, everything was waiting for the test results from him and Lao Xian. The top priority at present is not how to conduct an investigation, but to determine whether it is a "case" or "not a case" and solve qualitative problems.
At 10 o'clock in the evening, Brother Ming gathered everyone together. To my surprise, he also made a special call to Ye Qian. This inadvertent action seemed to convey a bad message.
"Let me tell you about the autopsy." Ming Ge looked solemn. "The exact ages of the three deceased were basically determined through tooth wear and pubic symphysis. Female deceased No. 1 was over 82 years old, and female deceased No. 2 was over 74 years old. Male deceased No. 3 was over 80 years old.¡±
¡°All three of them suffer from high blood pressure, heart disease and common cardiovascular diseases, and are bedridden all year round.
"After determining the size of the gaps in the myocardium of the three deceased people, I can basically judge that the three deceased people were frozen at the same time. In other words, there is still a possibility that they were killed at the same time. The specific cause of death will be told by Guoxian."
"It was poisoned to death." Lao Xian said calmly.
"What? Poisoned? What kind of poison was used? Why are there no signs of poisoning at all?" I was shocked and asked several questions in succession.
"There are no symptoms of poisoning because we often eat what the three deceased people ate, but the dosage is different."
"Can you please stop showing off?" Pang Lei couldn't wait.
Lao Xian opened the test report: "I extracted a large amount of porcine thyroxine from the stomach contents of the three deceased people."
"Pig thyroxine? What is that? Can it eat dead people?"
Lao Xian patiently explained: "The thyroid gland of pigs is located under the front of the neck. It is dark red and generally weighs about 13 grams. The chemical properties of tetraiodothyronine and triiodothyronine in thyroxine are very stable and require Only a high temperature of 600 degrees Celsius can destroy it, and ordinary frying and frying will not help. Once the human body takes in a large amount of thyroxine, it will increase the oxidation rate of most cells in the body, increase heat production, and dilate the small arteries under the skin, so it will Fever and sweating, while the excitability of the nervous system increases, symptoms of mania and even convulsions may occur. In addition, the activity of the cardiovascular system also increases, the heartbeat speeds up significantly, and symptoms such as palpitations may occur. In addition, excessive intake Thyroxine can also destroy the body's endocrine balance, interfere with the normal function of the hypothalamus, and cause imbalances in various internal organs, leading to symptoms of poisoning.
"Generally, when butchers sell meat, they will remove the thyroid gland first. Even if some careless butchers forget about this, there is no chance of symptoms of poisoning if they accidentally eat a thyroid gland. And I tested the stomach contents of three deceased people. The content of thyroid hormone produced is as high as 30%. This amount is beyond the reach of even young men, let alone the elderly.
"And I have calculated that in order to reach such a high concentration, at least 10 pig thyroid glands need to be boiled together. In this case, the suspect's subjective intention is quite obvious."
Brother Ming took over the conversation: "The high concentration of thyroxine induced three people to suffer sudden cardiovascular diseases, which eventually exceeded their body load and led to death. Therefore, our case can basically be characterized as a homicide."
"It's really a murder case!" I was completely confused because I really couldn't understand the suspect's motive for poisoning three innocent old men.
"The nature of the case has been determined, and there are several aspects of work that still need to be carried out." Brother Ming's words brought my thoughts back.
"Ye Qian, notify the criminal police team to sort out the missing persons who meet the requirements."
"clear."
"Xiaolong, Jiao Lei, Guoxian, you must finish processing the physical evidence on hand tonight and re-examine the scene tomorrow morning."