Bai Xin arrived at the scene with Senior Brother Wang almost immediately after the incident this time.

This time, although the killer wiped his fingerprints and cleaned the entire room, he did not wipe off the bloodstains. It seems that he deliberately provoked the police, leaving such obvious traces.

Bai Xin walked into the bathroom, and then he knew the reason why the murderer did not remove the bloodstains. Because it is a painted wall, even if it is wiped, it will leave a faint trace, and there is no need to do anything without three hundred taels of silver here.

Bai Xin observed the blood stains, which were swaying in all directions along the center of the circle, showing a throwing bloodstain.

The color of the blood is equally dark, and it must have been the first struggle, so it was thrown everywhere, and then gradually weakened, so it gave up resistance.

Bai Xin touched along the tiles again, and there were still two traces of friction on the bathtub, apparently the murderer used a rope to tie the deceased's hands to the iron handle to prevent her from escaping.

But there's something very strange.

It stands to reason that if the murderer cuts the pulse and the deceased begins to struggle, there must be an area that is not stained with blood, that is, it is blocked by the murderer's body, so that piece of ground will be very clean.

Even later, when the killer stepped away, the ground was stained with blood again.

The color of the dried blood will also be different from that of other areas, as the timing of the blood dripping may differ.

But the blood stains in this circle all showed the same color and throwing force, as if the murderer had been watching from the sidelines, and did not approach the deceased and cut her wrist.

Bai Xin couldn't think of it, so he simply gave up the association. Even if he knew how to die, it was useless, the murderer was very shrewd and did not leave any information, such a meticulous plan was almost perfect, and there was not a trace of flaw.

If it is the murderer who takes the report, then he must be someone who is familiar with the deceased, otherwise he should not have known such a habit.

Bai Xin asked, "Senior Brother Wang, is there any connection between the person who died today and the one who strangled him a few days ago?" Like they're friends or something? ”

Senior Brother Wang said: "We also went to check this, but unfortunately, they have no connection, and they are not even classmates in kindergarten, and their careers are very different, and there is no intersection at all." Ah, there really is one, this one also received a large amount of life insurance compensation, some people say that the murderer deliberately selected such a person to start, and may even be an insurance sales worker, otherwise how could he know the basic information of the deceased? ”

"This isn't a deliberate homicide, so the insurance money is settled, right?" Bai Xin asked.

"Yes, if it goes on like this, the company will have to go bankrupt, if I also have a sister who is ......" Senior Brother Wang thought for a while, and then stopped, "Forget it, there is nothing to envy about this kind of thing." ”

When Bai Xin took off her gloves and walked out of the crime scene, she suddenly felt like a man's back, like a needle prick, hot and secret.

Xu is what she saw in the afterglow, and she always felt very uncomfortable. Bai Xin hurriedly glanced at the crowded crowd outside, and his eyes were immediately attracted by a man in a dark black suit.

This person seems to be ......

Bai Xin relied on his keen intuition and chased after him in a few steps.

It was as if the man had disappeared into the vast sea of people, never to be seen again.

Bai Xin closed her eyes and looked back at the previous picture, judging from the sharp side profile of that person, it seemed to be the man she met in the hospital.

After getting off work, Bai Xin returned to the apartment.

She subconsciously stepped on the carpet, only to notice something stiff under her feet.

Bai Xin lifted the carpet and saw that it was a beautifully packaged mint candy with a strong smell of disinfectant on it, and it was obvious that the other party had done enough cleaning to imply that Bai Xin had learned all her information and left no trace.

Such a move can be regarded as a warning.

Bai Xin was afraid, she took two steps back and rang Su Mu's doorbell.

Soon, someone opened the door and asked, "Miss Bai is off work?" ”

"Teacher Su, help me, I seem to be being targeted."

"I know."

"You know?"

"From the point of view of technique, this person's self-righteous Cheng dù does not lose to you at all, in other words, it is...... Very arrogant. Su Mu said indifferently, "Come in, I made dinner, I don't mind if I can treat you again." ”

"Well, thank you." Of course, Bai Xin didn't say anything, and entered the house in a few steps.

Su Mu originally wanted to close the door, but then took a step back, took a post-it note and a pen, drew the symbol of "∑i", and pasted it on Bai Xin's door.

Bai Xin didn't know what to say, and asked, "What does this mean?" ”

Su Mu said: "∑ means sum, I means unknown, means sum for him, we have to know the nature of the question type." ”

She suddenly realized that Su Mu was helping her ask for her motive in this lame way, after all, she was the target of the person behind the scenes.

Do you have to die for her, or is there an attempt?

Bai Xin closed the door again and sat down at the dining table.

She wrung her fingers, fidgeted, lost her sense of taste even when she ate, and only had a salty taste on the tip of her tongue, and she could not taste the sweetness.

It's that she's too nervous, worrying about the sky, and tossing herself before the danger comes.

Su Mu said: "I made some custard, it is easy to digest, good for the stomach, and I always have to eat two bites of this if I don't eat." ”

Bai Xin seemed to have listened to it, and it seemed that he didn't listen to it.

She nodded, tasted twice, and put down the spoon again, thinking about things.

"One more dead person, huh?" Su Mu talked about this at the dinner table without the slightest discomfort, he was full, twisted the corners of his mouth with a tissue, and cleaned up the residue on the dishes.

"Honestly, are you afraid?" Bai Xin asked Su Mu, "He is a murderer, I don't know why he is eyeing me, I always feel that I will be next." ”

Bai Xin's fear is not unreasonable, she is a woman, meets the standards, and then is warned.

Su Mu didn't say a word, he went out and tore off the post-it note from Baixin's door, except for the "∑i" symbol on it, and added a "" behind it, the figure is a circle and a crossbar, which means empty set, that is, there is no solution.

In other words, if you want to make peace, there is no way.

That man followed her all the way to the door of the house, and added such a stroke?

Bai Xin was so frightened that her back was sweaty, she licked her lower lip and asked, "How do you know that he will definitely reply?" ”

"Because I've been observing." Su Mu said.

"Observe what?"

Su Mu closed the door and locked it before he spoke solemnly: "Observe the things I'm interested in, including the mint candy case this time." That person should have noticed you a few days ago, but he didn't know that you were driving the case forward under my guidance. So, while he is following you, I will observe him in the shadows. And just now, I witnessed him follow you on the windowsill. ”

"This is what is called, the praying mantis catches the cicada and the yellow finch is behind?" Bai Xin said.

"Almost," Su Mu said, "but I think he doesn't want to kill you, just give you a proper warning and don't continue to investigate." ”

"Why? Because he is a murderer? ”

Su Mu shook his head: "I don't know, but it may not be that simple." No matter how bold you are, you shouldn't be stupid enough to come to the door with such a fool of yourself. If I were a murderer, I would have waited for an opportunity to find a deadly solution. ”

"That's right, if it's a murderer, it's too late to escape, how can you come forward and show your feet."

"But it's also possible that he didn't have any horses and feet exposed, so he was fearless."

"What do you mean?"

"Literally, go ahead and look it up." Su Mu refused to speak, his eyes wandered, and he turned out of the window.

Bai Xin opened his mouth and turned out his voice.

"By the way," Su Mu thought of something, "but please remember, this person is by no means a good stubble, he has already explained his intention on a post-it note." ”

"What do you mean?"

Su Mu put out the piece of paper again, word by word, and said slowly: "If you continue, you will not die." ”

Bai Xin pursed her lips, she didn't dare to act rashly anymore, maybe she would take her own life.

She still does the work within her responsibilities, is honest, and it is better to be a good person.

After all, her life is still worth something.

The next day, Bai Xin didn't mention anything about mints in the unit, and was ridiculed by Senior Brother Wang for being a three-minute hot.

And at this time, there was a new development in the case.

Witnesses claimed that both deceased had met with a man in a dark black suit in the days leading up to their deaths.

Bai Xin felt that there was a ghost, but he didn't dare to confirm it, for fear that it was really that man.

She went to deliver a piece of information, and occasionally passed through the interrogation room, and a familiar voice came from it, it was the man.

Out of curiosity, Bai Xin still hid in the corner and listened to it.

Someone asked him, "Where are you at 7 a.m. on May 28?" ”

The man was still calm and steady: "Do you mean an alibi?" I had morning tea at the fan leaf breakfast shop, the old rules, if you don't believe it, you can ask, and everyone there can testify. ”

"Well, where were you in the middle of the night the day before yesterday?"

"I was working overtime, and there is no doubt that I have a colleague to testify."

The interrogators were embarrassed, they looked at each other, as if they had checked, and the alibi was indeed established.

The deceased was not at the scene at the time of the murder, so the suspicion of being killed by this man can be completely ruled out, and the evidence is sometimes so simple and powerful.

The man chuckled and said, "Excuse me, can I go?" I also need to work overtime. ”

"Okay, if there's something we can contact you again, I'm in trouble."

Bai Xin heard the sound of footsteps, and suddenly took a few steps back, trying to dodge. But the corridor here is too long, and I can't find a place to hide for the time being.

She met the man's gaze, paused, and smiled dryly: "Hello, meet again." ”

The man didn't smile, his eyes were surprisingly cold, "The second time we met, how is Miss Bai doing?" My name is Shen Bo, and the next time we meet, you can call me Mr. Shen. ”

Bai Xin nodded and said, "Hello Mr. Shen, that's nothing, I'll leave first." ”

"Okay." Shen Bo walked up, walked back again, and asked, "By the way, Miss Bai." ”

"What?"

He hooked his lips and smiled: "Do you like mints?" ”

"Huh?"

Without waiting for Bai Xin to reply, he spoke to himself and said, "I like it a lot." ”