Lin Yalin watched Xu Yao playing several roles, busying around, mumbling to himself.

She was only interested in her forensic work, so Xu Yao's words sounded like a bunch of nonsense to her.

Xu Yao stared in a daze at the marks on the bedroom floor left by Liu Lidan when she died. After about three minutes, he suddenly turned his head and stared at Lin Yalin, and asked loudly:

"Sister Ya, a healthy person was stabbed twice in the abdomen, but these two knives did not injure the key organs. How long does it take from blood transfusion to death? Let's take Liu Lidan as an example."

"This depends on the specific case analysis. However, according to Liu Lidan's physical examination report, although she is thin, she is still very healthy in all aspects. If we take her as an example, it will take at least three hours for her to lose blood to death.

"Huh?"

Lin Yalin felt there was a huge loophole as she spoke, "No, you just said that Liu Lidan was stabbed by Liu Yuemei at 9:40, but the mysterious man came out at 11:20, which means that Liu Lidan was already dead at that time.

My autopsy report also shows that the most accurate time of Liu Lidan's death should be around 10 to 11 o'clock, but that's not right...

Liu Lidan died an hour and a half after being stabbed twice. If it was simply due to excessive blood loss, she shouldn't have died" so quickly.

Xu Yao turned around with a smile on his face, "Sister Ya, you only realized now that I figured it out when I called you this morning.

Sometimes people use inertial thinking too much and always overlook a lot of details. That's also because I have worked with you for so many years, which makes me unconditionally trust every word you say.

So when your forensic report said that Liu Lidan died of excessive blood loss, I didn't have any doubts.

Lin Yalin's face was full of shock and a little bit of guilt, "Then Xu Yao, you mean that Liu Lidan's cause of death is wrong."

Xu Yao asked again, "Sister Ya, when you did the toxicology test on Liu Lidan, did you find anything?"

"No, I scanned and tested Liu Lidan's body from all directions and found no pinholes. I also used the most advanced methods to test her, analyzing all the toxins currently existing in the country, but found no signs of poisoning in Liu Lidan."

Xu Yao did not answer, but walked directly to the balcony with a magnifying glass.

I am now very convinced that the telescope played a decisive role, but so far, the telescope has not been found. Even if my guess is the most accurate, it is in vain without evidence."

Xu Yao said as he searched back and forth on the balcony, almost sticking to the ground to observe.

Suddenly he shouted, "Lin Yalin, come and see, there are scratches on the balcony door frame." There were

also several small holes in the tiles on the wall diagonally opposite. "

Lin Yalin said, "Scratches are normal. It is inevitable to have bumps and bruises in life. The small holes on the tiles are probably small holes caused by the quality of the tiles."

"You will know when you come and see it." Xu Yao urged.

Lin Yalin said puzzledly, "No, the size and depth of the holes are very regular, almost exactly the same, and the holes are very small. You need a magnifying glass to see them clearly."

Xu Yao did not answer her, but found a small wooden stick and held it with both hands, lowered his head and arched his back to look at the sky through the stick.

He changed directions and then looked at the small hole on the tile again.

"Just as I expected."

Seeing Xu Yao keeping her in suspense, Lin Yalin couldn't help asking, "Captain Xu, can you please stop keeping me in suspense? What did you think of?"

Xu Yao didn't answer, but changed the subject and asked, "Sister Ya, are you sure you also did a toxicology test for biological toxins on Liu Lidan?"

Lin Yalin thought about it for a few times, and suddenly realized, "Oh, by the way, the comprehensive toxicology test on Liu Lidan has not produced any results yet. The main reason is that this type of toxicology analysis is very troublesome, and samples need to be delivered to more than a dozen relevant departments."

"Okay, I'll wait for the toxicology report. Also, I think we can take these small holes back."

Xu Yao took out a carving knife from his large backpack, dug out the tiles and put them into a plastic bag, "Let's check if there are any toxins in them?"

Lin Yalin turned into a curious baby, "You mean Liu Lidan was poisoned?!

Just thinking about it, I feel a little uneasy. The murderer must be a master of poison. Now... In China, there are very few toxins that enter the body that cannot be detected by forensic doctors.

Generally, some chronic toxins are taken orally or injected into the body and are slowly absorbed by the body. If the forensic doctor is careless, it is very likely that no results will be found. "

Xu Yao suddenly interrupted, "This is not a chronic poison, but a toxin that will quickly kill people after being injected into the body."

Lin Yalin was a little bit unbelievable, "Does this toxin really exist?"

"We'll have to wait for your report to come out to find out." Xu Yao patted the dust on his coat, "Okay, I've found the answer I'm looking for. Sister Ya will test these things carefully, and I'll go back to the hospital obediently. Don't tell the master about what happened today.

Otherwise, he will send me to a mental hospital!"

Lin Yalin asked with concern: "Xu Yao, is your mental state really that bad now?"

Xu Yao laughed "You are afraid that I will become a psychopath! Don't worry, I know a little about psychology. PSTD can be cured with just a little medicine."

Sure enough, Lin Yalin's facial expression relaxed a lot after hearing this, but Xu Yao smiled bitterly. He was not telling the truth, because his current symptoms were not as simple as PSTD. He was also accompanied by irritability, insomnia, depression, and the most serious was his auditory and visual hallucinations.

Although he cooperated with Li Tianfeng's treatment these days, hypnotized him almost every day, and let him enter the white building countless times, he could not see the faces of those children clearly no matter how many times he tried.

Xu Yao had long realized that the recurring dream of the same scene was no longer a simple dream, but was probably a missing fragment of his memory, after all, he had completely forgotten everything before the age of eight.

Lin Yalin was relieved to see Xu Yao regain some of his anger. He was concentrating on the investigation, with a stern face, and looked really serious and scary.

Xu Yao turned around and walked down the stairs. When he passed the gate, he shook hands with the security guard and whispered something in his ear. The security guard smiled and nodded.

Lin Yalin couldn't help laughing, "Xu Yao, you actually used your charm to conquer a security guard! You must have asked him to keep your visit here a secret, right?"

Xu Yao smiled sideways, patted Lin Yalin's shoulder, walked out gracefully and waved,

"Goodbye, I'll wait for your good news."