"Open, open the door?" the man replied in a slurred manner, his eyes dodging.

"Well, you are the neighbor of the injured Qimo, last time the incident happened, my colleague knocked on your door, you should not be at home, but you are the neighbor of the injured, so we are going to ask you about the situation. Xu Chengyan's eyes sank, and he couldn't help frowning.

The man groped with his hands on his chest, anxious, as if he was hiding something.

"What? Is this matter related to you, so you don't dare to let us in?" Xu Chengyan glanced sideways slightly, glanced at him coldly, and his voice was heavy.

But as soon as the man heard him say that this matter was related to him, he immediately became excited, and waved his hand again and again, "No, no, no, it's not me, it has nothing to do with me, I didn't kill anyone, and I won't hurt the injured." ”

"But as soon as you saw us in such a panic, and you didn't want to let us in, isn't this a thief?" Xu Chengyan asked him sharply.

"No, really not. The man frowned tightly, lowered his head and pondered for a moment before he walked over in small steps, "I, I'll open the door, you guys come in and see, it really doesn't matter about me." ”

"If you did it, we'll find out. Xu Chengyan pursed his lips with a solemn expression.

The man opened the door in a panic with trembling hands, Qiu Lan and Xiao Cong stood next to Xu Chengyan with the box, while the staff of the forensic department and other members of the serious crime team began to collect evidence in the small courtyard.

"What's your name?" Xu Chengyan took the record book and said coldly.

"Circumference Luck. The man hung his head and muttered under his breath.

"Zhou Changyun?" Xu Chengyan deliberately raised his eyes to stare at him, and asked in confusion: "Is Zhou Changyun, who committed the crime of indecency before, you?"

"Yes. The man frowned, his voice trembling a little, "But, but I have already served my sentence, I have confessed my mistake, and now I am a good citizen, and I have not broken the law again." ”

At this moment, Cao Fan, who was searching the house, walked out, "Officer Xu, I know why he refused to let us in, he was just taking drugs, and there are still residues on the table." ”

"Okay, I got it. After Xu Chengyan nodded, his eyes stared at the weak-hearted person in front of him, and his voice was cold, "This is what you call a good citizen?"

"I just came out of the detention center last month, and today I was caught taking drugs?"

"I, I. The man pursed his lips in a panic, and a dense fine sweat appeared on his forehead, "Officer, I, I was wrong, I was wrong, you go around me once, I know it's wrong." ”

Xu Chengyan ignored him, but asked in a cold voice: "Zhou Changyun was from four to five o'clock yesterday morning, where were you and what were you doing?"

"Yesterday morning?" he brows, his eyes rolling, and his mouth muttering in a low voice, "it was too early, and I was sleeping at home." ”

"Are you at home? Is there anyone who can help you prove it?" Xu Chengyan raised his eyes slightly, staring at him sharply.

"No, I've always been single, no children, I'm the only one in the family, but I really sleep at home, who will go out so early, police officer, you have to believe me. Zhou Changyun clenched his fists and looked at the person in front of him with a panicked expression.

"If you don't have a witness, there is no alibi, and the deceased was violated, and you were once accused of indecency, so you are very suspicious, and if you want to prove whether you have killed someone, you have to cooperate with us. ”

Xu Chengyan moved his lips with a cold face, and turned to look at Qiu Lan next to him, "Doctor Qiu, please make a living forensic for him." ”

"Okay, leave it to me. Qiu Lan and Xiao Cong walked to an empty room with the suspect and opened the silver box in their hands, "Stretch out your hand." ”

"Yes. Zhou Changyun trembled and stretched out his hands and hung them in the air.

After Qiu Lan looked at the suspect's hand rigorously, she found that her five fingers were complete, and she didn't cut off her fingers, "Xiao Cong, give me the ruler." ”

"Yes. Satoshi turned around and took out a ruler and handed it to her.

"It was recorded that the distance between the left hand of Zhou Changyun was twenty-three centimeters, the distance between the right hand was twenty-three centimeters, there was no broken finger, and the little finger was intact. Qiu Lan carefully compared the suspect's data and slowly spoke.

Later, she took the suspect's oral epithelial cells, blood samples, and semen and fluid samples, "and so on, and gave the samples to her colleagues in the forensic department so that they could compare them with the evidence collected at the crime scene and autopsy." ”

"You only need to compare the DNA to know if he is a murderer. ”

In Zhou Changyun's small courtyard, the forensic department, the serious crime team and the forensic doctor all gathered together.

"Officer Xu, apart from the cocaine and yin found on the table in the house, we did not find any blood reactions in the house and the small courtyard, nor did we find anything related to the murder. Cao Fan frowned and told Xu Chengyan the results of the evidence collection.

"There are also bruises on the back of the deceased, and we have not found anything of similar shape. ”

"Okay, thank you, Expert Cao and my colleagues in the Assurance Section. Xu Chengyan nodded with a heavy face, and turned to look at Qiu Lan, "Doctor Qiu, have you found anything?"

"Officer Xu, when I was conducting a live forensics for the suspect Zhou Changyun just now, I measured that the distance between his right and left hands was twenty-three centimeters. ”

"The autopsy report of the deceased stated that the compression marks on the face were 22 centimeters between the right hand and 25 centimeters on the arm. ”

That is, this does not match the dimensions of the two murderers on the report. Xu Chengyan lowered his eyes and thought secretly, "What about the fingers?"

"The fingers are intact, there is no mutilation of the little finger. Qiu Lan gently twitched her red lips and replied softly, "I have already collected his blood samples, cell samples, and semen and fluid samples and handed them over to Specialist Cao, as long as they conduct DNA monitoring." ”

Hearing her words, Xu Chengyan nodded and said indifferently, "Okay, I'm sorry for you, but according to the situation at the scene, Zhou Changyun should not be the murderer, and the murderer is someone else." ”

"That's what I thought, too. Qiu Yan frowned, and echoed softly: "When I was doing a biopsy for him just now, I found that his hands couldn't exert their strength at all. ”

"Probably because of drug addiction or physical factors, it should be difficult for him to use stones to cause wounds on the back of the deceased's head. ”

"Well, I understand, thank you Dr. Cho. Xu Chengyan pursed his lips, took a heavy breath, and said coldly: "But we found Cocaine and Cause in the room, so we still have to take him back and hand him over to his colleagues in the Drug Investigation Department to deal with." ”

"Yes. The members of the serious crime team handcuffed Zhou Changyun and escorted him to the car.

Just as the people from the forensic department and the forensic department were all tidying up their things and preparing to leave, the corner of Qiu Lan's eyes suddenly caught a glimpse of a person pushing a cart outside the blockade line.

That person is so familiar, it seems that where have you seen it?

Yes, at the second crime scene, where the injured Qi Mo was found, he also pushed the cart to it.

If I'm not mistaken, that day Qiulan saw the man wearing a white line of gloves, but the place of the little finger was atrophied.

It's him!