The midnight after the snow was unusually cold, and he had to be careful with every step, Xu Tian had not experienced such a cold night for a long time.

Si Tong had already fallen asleep in Lao Chen's car, Si Yan put her own coat on Si Tong, the two sisters leaned together, and Si Yan took care of her sister like a baby.

Seeing Xu Tian coming over, Siyan put Sitong down in the back seat and got out of the car, this cold night came very suddenly, and they didn't have time to prepare winter clothes.

"Needless to say goodbye, I will send my sister to a safe place for treatment and will be back soon." Siyan said.

"Can you tell me where to go?" Xu Tian looked at the car window that was covered by frost, although he could only see Sitong's outline, the uneasiness in Xu Tian's heart had been eliminated a lot.

"I'll tell you when the ruling Tai Sui returns to the case, you will experience a lot of things during this period, don't let your sister be a burden to you."

"Will you stay with Sitong?"

"Of course, I will stay with my sister every step of the way, I regret that I can't participate in this operation, and I must be the first to tell me when the ruling Tai Sui is caught."

"Okay."

Xu Tian didn't want to say too much, every second of his heartbeat here carried a faint pain, those affectionate eyes didn't blink, and moved to the door of the office as Xu Tian slowly turned around.

After turning around, Xu Tian's eyes were still slightly lowered, fortunately it was cold tonight, Xu Tian felt that maybe his eye sockets were frozen, but in fact, he understood that his heart was frozen.

Li Zhitong was in charge of escorting the two sisters away, and after returning to the office, he did not feel much warm, but felt that this place where the two sisters used to laugh and laugh was even colder than outside.

Dr. Lin also went back, and Lao Chen's car was driven away by Li Zhitong, so Lao Chen decided to spend the night on the sofa in the office tonight.

"It's dawn in five hours, don't you mind if I borrow your couch for a while?" Lao Chen said.

"What are you talking about?" Xu Tian lay opposite Lao Chen, closed his eyes and said.

"It's going to be over soon, don't think too much about it, they'll be safe."

"By the way, you previously investigated and found out that the employer of the bus Yan An was riding was Dr. Lin's assistant, is this true or false?"

"Really! However, I have not yet spoken to Dr. Lim. ”

"Dr. Lin was involved in this case, will you still believe Dr. Lin?"

"That can't be said, that assistant was recruited by Dr. Lin after he returned to China, and it shouldn't have much to do with Dr. Lin."

"Aren't you going to remind Dr. Lin right now? If that assistant was sent by the ruling Tai Sui, the consequences would be quite serious. ”

"No, Yan An and Yi Shuai's case should have nothing to do with Zhinian Tai Sui."

"Are you so sure?"

"I've already found a breakthrough."

"Is the neighbor's mentally abnormal Aunt Wang?"

"Yes, Aunt Wang must know something, the street director gave me Aunt Wang's information, and the psychiatrist who treated Aunt Wang has also been contacted, Aunt Wang's condition is not very serious, but because of the paranoia caused by excessive missing of her deceased husband, which is similar to Sitong's condition."

"But tonight Sitong also said that she heard a woman's cry, this matter can't be so coincidental, right?"

"This incident does sound like a coincidence, but I can conclude that it has nothing to do with Sitong about the woman's cry that Aunt Wang heard."

"Have you already investigated the cause of Yi Shuai's death?"

"I can only say that there are eyebrows, you help me analyze and analyze, there are some doubts that I haven't figured out yet."

"Tell me everything you know!"

Xu Tian got up and went to the bedroom to get two quilts, and turned off the lights.

"After I visited Aunt Wang today, I went to Yi Shuai's house to check it out." Lao Chen said.

"Is there a new discovery?" Xu Tian said.

"Someone in Yi Shuai's house has obviously entered, and there are very obvious traces in the kitchen of Yi Shuai's house."

"So, is it true that Aunt Wang heard the woman's cry?"

"Quite possibly."

"Then why didn't you tell me before?"

"I'm afraid that the wall has ears, and this kind of thing can only be told to you in this closed environment, this is the basic quality of the police, please understand."

"I understand, go ahead!"

"When I entered Yi Shuai's house at that time, I smelled a perfume, which was not particularly strong, it was a very fresh one, judging from the taste, it should be a perfume used by a young woman."

"The person who entered Yi Shuai's house should be easy to investigate, right?"

"That's right, I negotiated with the property, checked the surveillance next to the elevator on the first floor, and didn't find that outsiders had gone upstairs all night, and the perfume smell of Yi Shuai's house had not been diluted, from this point of view, no one should have gone in before I went to Aunt Wang's house."

"And it's very likely that that person lives in the same building as Yi Shuai, right?"

"That's right! Because no outsiders were found to have entered the building, the person who entered Yi Shuai's house must have lived in the door of that unit. ”

Officer Chen...... I'm a little embarrassed, but I have to contradict you. Xu Tian said lying on the sofa with his head sideways.

"What? Do you think my point of view is wrong? Lao Chen was very puzzled.

"It's clear that someone is misleading you in this case, think about it, how could anyone be stupid enough to let you smell perfume?"

"Then what do you mean ......"

"Someone deliberately entered Yi Shuai's house and sprayed some perfume on Yi Shuai's house, this criminal's actions are too idiotic, so it will be easier for us to track down."

"You rejected the results of my overnight investigation? But I think your words are still reasonable, I didn't smell that kind of perfume at Aunt Wang's house, it shouldn't be Aunt Wang's hands and feet. ”

"The person who can do this kind of thing will definitely not be a neighbor, and you didn't say that the door lock of Yi Shuai's house has traces of being picked, doesn't that explain the problem?"

"I see!" Lao Chen suddenly realized. "It must be the perfume sprayer who knows I'm going to investigate."

"That's right!" Xu Tian raised the corners of his mouth and said. "The person who sprayed perfume at Yi Shuai's house knew that you were going to investigate, so he went into Yi Shuai's house to spray perfume before you got there, that person's purpose should be to make you think that the criminal is a woman. There are also traces that the door lock has not been picked, which means that the person opened the door with a key, and this person has surfaced. ”

"The property manager is not there at night, the person who handles Aunt Wang's affairs is a security guard, and he is also the security guard on duty at the property, and he can get the key to Yi Shuai's house, and the person who will not be thought strange when he goes upstairs can only be the security guard."