Su Mu's words woke up Bai Xin at once.

She is too subjective and should believe the evidence, not distort it with her feelings.

It's like the day before yesterday when she climbed the wall, she had the preconceived impression that "there was no one in the next room" in her mind, and later, when she saw the lights turned off in the house, she subconsciously distorted the evidence and conjured up a subjective judgment - there was no one in the house.

However, according to logical thinking: the lights are turned off in the house, and there is no one living next door in the last two years, these two clues are not enough to deduce that there was no one in the house at that time.

Therefore, it is white heart and self-righteousness.

She can't compare to Su Mu to look at the facts objectively, so she will never be able to surpass him.

This person was so calm that he made Bai Xin feel frightened and avoided him.

At that time, it was Su Mu's first lesson to her - don't be deceived by your eyes.

Bai Xin had an epiphany, and she spoke: "Am I too eager for quick success?" ”

Su Mu was silent, only took a sip of hot boiled water, and opened his lips slightly: "I said it, the number of jù is not enough to solve this question, it needs to be improved." ”

"I ......" Bai Xin didn't know what to say, in the past, she only needed to give specific numbers, deduce the cause of death and trace the crime, but she didn't need to investigate by herself to understand the complete cause of the homicide, that was the responsibility of the police.

It was her first hands-on experience with the process. At the same time, I was unexpectedly interesting, like opening an unknown door to the truth.

"Well, I'll give you some more hints." Su Mu put down the water glass, got up, and walked to the house.

After a while, Su Mu moved over a plastic plate and wrote the word "condition" on it with a pen.

"First of all, let's take all the issues apart and summarize certain inferences one by one." After Su Mu finished speaking, he glanced at Bai Xin.

His eyes under the lenses were as thick as crow feathers, and as cold as night snow.

Just one glance made people sit on pins and needles, and they didn't dare to get distracted at all, slacking off this math teacher who was concentrating on teaching.

"Teacher Su, please advise." Bai Xin couldn't help but straighten his shoulders and back, staring intently at the drawing board.

Su Mu wrote the first sentence on the drawing board - (1) The deceased died at seven o'clock.

His words are fast and steady, not Qingyi Juanxiu, but the words are clear, and they are very simple and obvious.

Su Mu asked, "What is death?" ”

Bai Xin replied: "Death in the true sense represents brain death, that is, the cells of the body die, the blood stops circulating, and people cannot dominate the body, turning into a pile of rotten meat." ”

"In other words, man has changed from a 'moving' object to a 'static' object, right?"

"Yes."

"So, next question." Su Mu said.

He wrote down another condition on the board - (2) The deceased was at nine o'clock, and had sent a posthumous message.

"That's right, this is a crucial point, because it is not the evidence that the murderer falsified, but the deceased." Bai Xin said firmly.

"So, combined with the first question, let's look at this point, people are dead things after death, and dead things can't send any information, so the second question is not valid," Su Mu paused, "At least logically it is not valid, but this message still appears, so it shows that there is a contradiction here." ”

Bai Xin can vaguely understand, but vaguely can't understand.

"You mean ......?" she asked. ”

Su Mu took the pen, nodded his eyebrows, and added: "It is impossible for the deceased to send any message, even if it is the voice of the deceased, it cannot be from her after death." Regarding the message, we have to find another way. ”

"But it's impossible, even if it's the voice of the deceased, why should she help the murderer?" Bai Xin said.

"Accomplices?" Su Mu turned around and seemed to realize something very interesting.

"She left such a word, isn't the result of the guide zhì just procrastinating for time and not discovering her body so quickly?"

"Interestingly, allow you to keep this inference." Su Mu said.

He picked up the pen and wrote down the last clue - (3) The deceased had only half a circle of strangulation marks.

"What's going on?"

Su Mu's tone was slightly inducing, and with his deep and soft voice, there was a natural attraction that introduced students into the world of interpretation he constructed.

Bai Xin asked: "This is also suspicious, but I didn't think of any reason." ”

"According to common sense, when a person is strangled to death, his hand will have a stress response to pull the rope. Therefore, if there is an accomplice, they will hold down the hand of the deceased and prevent him from breaking free, leading him to death. This can cause strangulation marks on the neck and bruises on both wrists. Su Mufeng was light, as if life and death had nothing to do with him, and he would not be affected in the slightest.

He continued to reason: "But if the deceased takes medicine before he dies, then it will be a situation where you say, there is no trace of the deceased's body. ”

Bai Xin explained: "But she doesn't have any drug ingredients in her body, which is very suspicious." ”

"It's not about struggle, it's not about medicine, so what does it mean?"

"What does it mean?" Bai Xin muttered to herself, suddenly, opened her mouth slightly, and asked in disbelief: "Could it be that she was willing to be killed, so there is no trace of struggle?" ”

"Interesting conclusions, which can be considered in this direction, are in line with the evidence." Su Mu neither said that he agreed, nor did he break the connection.

Bai Xin nodded: "I know, we can only analyze these now, we still have to learn more." ”

"Yes, so don't worry. People who are impatient tend to be arrogant and conceited, and even self-righteous. ”

Bai Xin always felt that the deep-seated meaning of this sentence was a metaphor for her impetuousness and conceit, and she was unwilling to be down-to-earth when investigating cases.

The roots of her ears were red, and she couldn't calm the faint feeling of embarrassment after several deep breaths.

"I recently caught a cold and need to go to the hospital to get some medicine, do you want to go together?" Su Mu made an invitation.

The white-hearted ghost sent the gods, but he didn't refuse. She also wanted to get something out of Su Mu's mouth again, this feeling of not knowing the mystery was really scratching her heart, making her itchy and at a loss.

Su Mu would drive, he drove directly and took Bai Xin in the direction of the hospital.

The outpatient department of the hospital has not yet closed work, and if you just grab a little medicine, there is still time.

When Bai Xin was passing by the corridor, he overheard the nurse discussing patient gossip in a few words.

"The lady in room A03 is really lucky to have taken such a large amount of insurance money."

"What good luck can there be, what good fortune can you have if you lose a daughter. Her daughter was very filial, but she didn't expect to die like this. The nurse holding the form took a pout and said regretfully.

Bai Xin stopped them and asked, "Which wife?" ”

"Isn't there a mint dead person on TV lately? It's her mother. ”

Her intuition was wrong, and she thought: Could it be that Su Mu deliberately brought her here to let her discover this flaw?

Bai Xin said: "I'm a friend of that person, and I came to visit her mother, I want to ask a few, how to get to room A03?" ”

Several nurses showed Bai Xin the way, and they didn't think about it so much, so they left first.

Bai Xin's heart turned a thousand times, and from the information he just learned, he quickly constructed the motive for the murder in this case.

If his daughter kills him, he can get a large amount of life insurance money after death, could it be that her mother wants to make money, so she fakes the murder scene to make money and kill?

It is not without this kind of saying, many people have this mind, so the life insurance contract will also state - deliberate homicide and suicide cannot obtain the amount of insurance compensation.

Bai Xin's heart was smooth, but he didn't expect the problem to be solved like this.

She walked briskly outside the ward and tried to question the deceased's mother.

Suddenly, she was stopped by a nurse who was doing rounds, and the other party asked her, "Hello, who are you looking for?" ”

"I'm looking for my wife in room A03, I want to ask her some questions about her daughter, I'm from the autopsy unit, and this is my ID." Bai Xin showed his forensic credentials in an attempt to gain visiting privileges.

But the nurse seemed to be illiterate, obviously looked at the certificate, raised her head, and glanced at Bai Xin with special disgust.

She said: "Are you mistaken, the wife in room A03 is in a vegetative state, she has been lying in a hospital bed for half a year, and she hasn't woken up much, let alone talked." Leave her alone. ”

"Vegetative?" Bai Xin was dumbfounded, why is this different from what she thought?

Originally, she thought that she had found a perfect breakthrough point in this problem, but she didn't expect that she was still put on the table and found a new clue or something, and it really had nothing to do with her.

Vegetative people, that is, completely unable to move, let alone kill.

Then the suspicion of killing his own daughter can be perfectly ruled out.

The white-hearted fox was confused, thinking in his heart: Also, Su Mu brought her here really to assist her in investigating the case, not to humiliate her?

Why does she always feel that something is not quite right?

Bai Xin took out a mint candy, stuffed it in his mouth and chewed it vigorously, his teeth snapping.

The more she thought about it, the more aggrieved she became, so she simply turned back to Su Mu directly.

And just as he was going downstairs, a man staggered past Bai Xin.

Bai Xin looked back and looked. The man went directly to ward A03, it should be to visit the deceased's mother, I don't know what kind of relationship it is.