The young and beautiful female forensic doctor Du put on a mask, and the hands that had dissected more than a hundred corpses looked unusually soft in the crystal clear gloves, making it difficult to think that these hands were dedicated to dealing with corpses.

The head teacher's stomach was deftly dissected and a large amount of sleeping pills were found inside. "These solids!" Du Mingming's eyes widened and stared at the scene in front of him in surprise, "There are so many sleeping pills that have not been absorbed!" ”

Some form a solution in the gastric juice, some mix with the gastric juice to form a paste, and nothing else.

Du Mingming was very puzzled in his heart, could it be ...... The head teacher took a dose of far more than thirty pills? If you eat only 30 pills, it is impossible to be lethal by visual measurement of the amount of absorption left in the stomach. However, the record of the black cold noodles was obviously that there were thirty missing from the bottle of sleeping pills next to the head teacher.

All the solid-liquid mixture in the stomach was removed, concentrated and evaporated, and the mass was weighed out, and then the mass range of gastric acid that may be contained was subtracted, which turned out to be about twenty-eight tablets of this sleeping pill. That is, the head teacher's body absorbed only two sleeping pills. However, for this type of sleeping pill, taking two tablets will not die at all.

The blood was examined again, and it was found that the sleeping pills in it were not enough to destroy the central system of the brain.

The nerve center of the deceased's brain was examined, and it was indeed due to the severe damage to the nervous system caused by an overdose of sleeping pills. Du Mingming fell into deep doubts: "Strange, why did the reason for death be because of sleeping pills?" ”

The next day, Du Mingming handed the report to Hei Lengmian and told about the phenomenon he discovered yesterday: "This is the specific situation. ”

Hei Lengmian touched his chin and frowned: "It's strange, in that case, how did he die?" ”

However, the examination found that he did die of nervous system overdepression. This is indeed the result of sleeping pills. ”

"It's strange, it's obviously inconsistent. The head teacher died of sleeping pill poisoning, but only about two of the thirty sleeping pills he ate were absorbed, which was not enough to make him die. ”

Du Mingming shook his head: "Anyway, my work is done, and the next thing is your reasoning." Watch out for you, Detective. ”

After she walked a few steps, she turned her head again, walked over to the black cold face, and took out a large one from the bulging gray coat pocket: "By the way, I found a sleeping place in the drug recycling station the day before yesterday, which was stained with a lot of garbage and sludge, and I was worried that this was related to the case, so I put it in a plastic bag." ”

In the evening, all colleagues got off work, and only Zhang Wuji was left alone. Hei Lengmian came back with the medicine bottle given by Du Mingming.

Zhang Wuji pushed the hot instant noodles over: "Lao Hei, it's hot for the third time, if you don't eat it again, the noodles will become more and more disgusting." ”

Hei Leng Noodles snatched the instant noodles and devoured them: "No, I think the noodles that have been soaked for a long time are more delicious." ”

"Your taste is truly unique. But I advise you to eat it anyway, even if it's cold, don't call me hot again. Because I accidentally threw a corner of the plastic bag into it when I soaked it for the first time, I was worried that heating the instant noodles again and again would increase the toxins produced by the plastic. If you don't pay attention all the time, it will be bad for your health over the years. ”

Hei Lengmian suddenly widened his eyes: "Over the years? ”

"yes, what, what idea did you come up with again?"

Hei Lengmian carefully observed the bottle, his eyes emitted a strange brilliance, and he hurriedly called Du Mingming: "Doctor Du! You just said that although you overdose on fifteen tablets of this brand of sleeping pills, it is not fatal? ”

"yes, what's the problem?" Du Mingming asked suspiciously.

Hei Lengmian almost gritted his teeth: "Thank you for reminding me, Doctor Du, I will sort out the incident and verify the fingerprints on the bottle of sleeping pills, so that the head teacher will not die in vain." After saying that, he immediately hung up the phone.

"Hey, hey, hey?" Doctor Du pouted, "Why is it so strange, I haven't finished speaking, hum, I'm so angry!" ”

Hei Leng faced Zhang Wuji and said excitedly: "I suddenly thought about whether the death of the head teacher was also due to the accumulation of sleeping pills over the years. ”

"However, taking sleeping pills for a long time will not cause this to happen."

"Have you ever heard of partial differential reasoning?"

"I've never heard of it~"

"The head teacher must have taken sleeping pills for a while before. And the murderer must have a way to make sleeping pills continue to work in the head teacher's brain. ”

"Hmph, the essence of partial differential reasoning is that there is more than one cumulative factor! If we start with only one factor, we will inevitably find no modus operandi and murderer; But if we can find other cumulative factors, we can find out the truth! ”

"The sleeping pills that the head teacher took before will damage the central nervous system every time in the presence of another substance, and if there are too many times, the central nervous system will really have problems."

"How long ago did the head teacher start taking the medicine?"

"He still has an empty bottle at home, but if he takes the normal amount every day, it should be fourteen months. In fact, under normal circumstances, a sleeping pill should not be taken for more than 14 days. Fourteen months has already exceeded the use time a lot, and it has had a very bad effect on his body. ”

"But the factor that affected his body was by no means the normal use of sleeping pills for two months."

"What could that be?"

"It's doubling up for a period of time, which must be less than 14 months. In this case, x and y are both available, x is the time to take sleeping pills, and y is the amount of each dose. In the end, z is the time of death of the head teacher! ”

"Even if that's the case, it can't be said that he killed him!"

"Look at the empty bottle of sleeping pills."

Zhang Wuji looked carefully and did not find anything strange.

"Look at the dosage. If you use the total amount of the prescription per serving, see how many you get. ”

"520 divided by 30, fourteen...... Oh my God, the above dosage is 30 capsules a day, even if it is a newly developed drug, it should not be taken so much at one time. ”

"So, the empty bottle has been relabeled. Normally, this medicine is taken for fourteen months. So, the head teacher overdosed on sleeping pills and took them for two weeks. ”

"So, he ate thirty tablets in the lounge because ......"

"The bottle in the break room was contaminated with ink, so the head teacher still took it the same way as before. The murderer was worried that we would find out that she had changed the label, so she would contaminate the label with ink, so that the head teacher would take the medicine in a dose of 30 tablets, and it was difficult for us to suspect that the label had been changed when we investigated the case. And this new sleeping pill, when taken 30 tablets at a time, is not lethal. However, this drug is newly developed and has not been advertised in any way. The murderer thinks that when we investigate the case, we will take it for granted that it is a normal sleeping pill, and after taking 30 tablets, we will soon die, so we will not pursue it further, which is the murderer's idea. ”

"However, the murderer didn't expect that he would run into such a person as you who is obsessed with reasoning."

"Who prepared this medicine for him?"

"His wife."

Kurakana has a shallow smile on her face, her stepfather, who once cruelly threw herself away, has finally disappeared from this world, and now she can finally be with her mother. The dusk ahead is like a new sunrise, how hopeful. When my mother saw her, she would be very excited, and when she thought of this, she couldn't help but speed up her pace, and said to herself: Mom's surname is Sen, then I can change my name to Mori Kana, what a beautiful name.

Immersed in imaginary bliss, a harsh voice came over that disgusted me.

"Kana-sama! Please don't walk so fast, me, I can't walk anymore. Shocking followed Kura Kana closely, a little out of breath, and his eyebrows were full of flattery.

Kurakana rolled her eyes: "Who told you trio to fight again, you can't fight and you are still strong, look at your face is blue and purple, how can I let my mother see you later?" You'd better go back. Also, don't call me an adult! ”

"No, Kana-sama, I'm your flower protector, and I'm going to be with you all the time."

Kurakana pursed her lips and didn't look at the shocking sky, she thought that this shocking was extremely annoying, and she couldn't shake it off, if she really made a fuss, she was afraid that she would also suffer from their campus violence, so she just said lightly: "That's up to you." "I kept thinking: It's annoying, the leader of this stupid trio should be arrested for a fight.

Shocking continued to lick the smiling face and follow the goddess like a pug.

Soon walked to the door of the house, Kura Kana just wanted to knock on the door, but two police cars came behind him. The smile froze instantly, and a faint feeling of uneasiness spread in my heart.

"Kana-sama, don't worry, it'll be fine." Shocking was trying to comfort him.

But looking at the solemn expression on the face of the policeman who walked out, Kana knew that the death of her stepfather was not simple, and it was very likely that her mother had been involved, or even ...... Kana didn't dare to think any further, her shoulders trembled slightly, she clasped her hands in front of her chest, bit her lip tightly, her heart trembled uncontrollably, and her eyes stared at these people who were going to enter her house.

Mom, don't be okay! Kurakana suddenly thought that her mother would not necessarily kill her stepfather, could it be that her mother was in danger like her stepfather? Thinking of this, Kana ran forward and anxiously asked the policeman who rang the doorbell.

"Uncle, may I ask...... Is something wrong with the family? ”

Hei Leng Mian stared at Kana Kura's face professionally, observing her psychology, and found that this female high school student was very frightened. It occurred to him that when he was investigating the Ban family, he found that the reorganized family had lost two daughters in one year eight years ago, one was Mr. Ban's biological daughter, who was twelve years old, and the other was Mrs. Ban's biological daughter, who was eight years old.

Looking at the nervous appearance of this female high school student, Hei Lengmian couldn't help but suspect that she was Mrs. Ben's daughter who had been missing for many years.

Hei Lengmian couldn't tell the girl in front of him about Mrs. Ban's murderous methods and evidence, he just said lightly: "You come in, if you have anything to say, hurry up." ”

Hearing such an answer, Kurakana's mind suddenly became confused, she understood the meaning behind this sentence, it seemed that her stepfather was really killed by her mother. It must be because she misses herself that her mother hates her stepfather and chooses to attack him. She crouched on the ground, tears streaming down her face like beads.