Seeing everyone looking at him, Xu Wen suddenly felt that he couldn't be too showy in front of these policemen, as he would easily be jealous of others, so he quickly waved his hands and said:
"Don't look at me. I don't have any evidence. I just thought there was mud on the shoes in their locker."
After hearing this, Meng Liang, who has been staying at the scene to assist technicians, said:
"Oh, those things. Since we discovered this hole, we focused our investigation on the four guards and re-searched the security room. All the items in the locker have been brought back as evidence."
Meng Liang's words relieved the police and relieved Xu Wen's pressure. He smiled and said:
"You guys are really efficient. You've been up all night, so go back and take a rest."
Liang Shi nodded and was about to call everyone to stop the team when the cell phone in his pocket rang. When he saw that it was the forensic doctor Lao Chen, he immediately showed a happy smile on his face, but he still did not let go of teasing Lao Chen.
Opportunity:
"Old Chen, your efficiency is a bit slow. You said you would give me the results in one hour, but now it has been more than ten hours."
Of course, Lao Chen was not a vegetarian, so he immediately responded:
"You stupid big guy has a good body, but I can't compare to you. I just slept for a while, and I still want to live for two more years to send you a flower basket."
"Okay, okay, I can't help you, so hurry up and tell me the result."
"I think we should meet and discuss it. The results of the autopsy are available, and the results of the physical evidence collected later are also available. We will rush to the Jiangbei branch immediately."
"Okay, I'll prepare breakfast for you." Liang Shi hung up the phone and saw the light of dawn on the eastern sky.
Jiangbei Branch Conference Room. The room was filled with the smell of steamed buns, soy milk and fried dough sticks. No one spoke a word, just slurping their heads and eating. After the fight lasted for more than ten minutes, a young police officer finally cleaned up.
table, and turned on the projector above the conference room.
Forensic doctor Chen Bochao pushed up the glasses on the bridge of his nose and began to say:
"Based on the biological samples provided by Meng Liang and Ma Yan, we conducted DNA testing and comparison with the deceased, and confirmed that the male deceased's name was Lao Zhuang, 43 years old, from Gui'an City, Jiangbei Province. The DNA information of Lao Zhuang and Lao Qiang was
The comparison is in line with full sibling relationships, and they can at least be identified as biological brothers. The deceased female was named Li Ping, 40 years old, and was also from Gui'an City, Jiangbei Province."
"What's the cause of death?" Liang Shi asked.
Lao Chen glanced at Liang Shi and continued:
"Through the appearance and anatomy of the corpses, we found intracranial congestion on the backs of the brains of the two deceased people. There were no traces of trauma in the areas where the blood accumulated. At the same time, rope marks were found on their necks. According to the corpses
Based on the bleeding and absorption of intracranial bleeding points, combined with the congestion of internal organs and dark red blood found in the autopsy, it was comprehensively determined that the murderer first knocked the deceased unconscious with a soft object such as a rubber stick or the palm of his hand, and then strangled him with a rope.
Hold the neck and suffocate him to death."
"Can the time of death be determined?" Liang Shi asked.
The technician changed a PPT, and Lao Chen turned over a page of the report and continued:
"We found at the scene that the body had been refrigerated at low temperatures, which made it very difficult for us to judge the time of death. However, based on the type of food in the deceased's stomach and the condition of gastric emptying, we judged that the deceased should have been after breakfast.
He was killed not long ago. So we infer that the deceased’s death time should be between 6 a.m. and 9 a.m. on the morning of the 4th.”
"How did you determine that he was killed after breakfast?" Liang Shi asked puzzledly.
"Because there are undigested fried dough sticks in your stomach, are you used to eating fried dough sticks at lunch or dinner?" Lao Chen replied unceremoniously.
After listening to Lao Chen's words, those who had just eaten fried dough sticks in the conference room felt a cramp in their stomachs.
Liang Shi was speechless by Old Chen. He frowned and shifted the topic to the physical evidence:
"Were there any findings at the scene? Were any biological samples, fingerprints, footprints and other evidence found?"
"Let's call our Dr. Bai. She is an expert in this field."
Dr. Bai's real name is Bai Yunfei. She received a PhD in Forensic Evidence from Yale University in Country M. She is a high-tech talent introduced by the Zhongjiang City Police Department. He has expertise in the extraction and identification of evidence at crime scenes and the development of new technologies for evidence.
Very high level.
Dr. Bai, who had a ponytail and glasses, nodded to Liang Shi, switched the photos on the big screen remotely and said to everyone:
"We first found multiple fingerprints on the galvanized square steel in the middle of the construction site fence. Most of the fingerprints on the ring finger of the left hand were very fresh and had been left for no more than 12 hours. I suspect that the fingerprints were caused by the damaged gloves of the disassembly and installation personnel.
". We then compared this fingerprint with the fingerprints of the four security guards, and they all did not match."
"Alas..." There was a sigh at the scene.
Dr. Bai ignored the sighs and switched to the next photo and said:
"This photo is of footprints we extracted from an abandoned river. There are two types of footprints. One is a common brand of sports shoes on the market, and the other is the kind of labor protection shoes worn by security guards. The footprints left from the scene
Analysis shows that the person wearing sneakers has drilled in and out of the hole once, while the person wearing protective shoes has entered and exited the hole many times."
After switching to another photo, Dr. Bai continued:
"After you left, Captain Meng found these again in the grass about ten meters away from the cave entrance."
The photo showed a shovel, a hand saw with a handle and a pair of dirty gloves. Next to these items were piled a few pieces of PVC flooring that had been cut off like those in the security room.
"Haha, Meng Liang, you are such a tight-lipped kid that you didn't report such important evidence even after you found it." Liang Shi said jokingly.
"Can you blame me if you don't answer my phone call?" Meng Liang argued.
"Ah, yes, let me take a look." Liang Shi picked up his cell phone and looked at it. Sure enough, there was a missed call from Meng Liang on it.
Dr. Bai ignored the lawsuit between them, but switched to another photo and continued:
"Subsequently, we also found the footprints left by the pair of protective shoes on the route from the cave entrance to the hiding place. The evidence showed that the person wearing the protective shoes walked back and forth between these two points at least twice."
Photos of four pairs of labor protection shoes appeared on the big screen. These four pairs of shoes are large and small. The shoe sizes are marked on the photos, two pairs are 42 and two pairs are 43. There is a lot of dust and mud on the uppers and uppers.
.Then another photo was released, which was a photo of the soles of four pairs of shoes. Even people with no experience in physical evidence identification can tell at a glance that the patterns on the soles of the four pairs of shoes are exactly the same.
Everyone at the scene was lost in thought, waiting for Dr. Bai Yunfei Bai's further explanation.