On the other hand, the extraction of physical evidence is also in progress, and this work is in charge of forensic doctor Xu Jingnan. In fact, he has always had doubts in his heart, and in this series of seemingly supernatural cases, he can vaguely feel that the suspicion of murder has never been completely ruled out. Therefore, Xu Jingnan took the autopsy of the victim and was extremely meticulous and cautious, but to his disappointment, so far, no valid evidence has been found, and worse, he has no idea where to start.

The trust of the Beiting Detective Agency made Xu Jingnan's pressure even greater, and he was very anxious and distressed. If the case goes astray because he finds deficiencies in his own links, or misses key points, he knows that he can't afford this responsibility. Therefore, he re-read the autopsy reports of the four deceased, carefully checked and compared, and decided to review the crime scene again to look for clues from the perspective of forensic medicine.

The first one, the autopsy report of the old man in Binjiang Park is very simple, he fell and kowtowed, died of cerebral hemorrhage due to head injury, and there are also signs of a heart attack, these are all problems in the body, not like there are outsiders who can carry out, of course, if there is an external force that triggers his heart disease, it is also possible, but at that time, the scene was because of the problem of the fishing line, so he really fell, at present, around it, no other external forces were found, so the report on the old man, it is normal.

Second, the cause of death of Tong Minghai of the fountain of the Music Square could not be simpler, falling from a height, causing his bones and body to suffer a huge impact, multiple fractures throughout his body, plus bleeding from internal organs, and finally induced hemorrhagic shock and died, and there was no other cause.

The third, Hou Hong in the vegetable market, died of a ruptured aorta caused by a puncture of the roast duck hook, but the place where she was at the time was a chaotic vegetable market, with a lot of things and people, the scene was more chaotic, and the clues were even more messy. For example, fingerprints were not extracted from the roast duck machine, and near Hou Hong, there were water, stalls, and hair left by everyone passing by, so even if there were, it didn't mean that it had anything to do with Hou Hong, after all, there were many people who went to the vegetable market every day, and anyone could go in and out.

After reading the first three crime scenes, Xu Jingnan was still confused, he didn't find any obviously useful clues, everything pointed to the prophecy that there should be this catastrophe in the dark. Of course, as a forensic doctor who graduated from a prestigious university, he will not believe in the so-called supernatural things, if it is not supernatural, then there is only one explanation, that is, the real murderer has super anti-detection ability. Most of the clues left at the scene are useless or potentially misleading to the investigation, and the real evidence has hardly been cleaned up. Xu Jingnan didn't dare to imagine who a criminal with such superb abilities could be?

Due to the murder, today's seaside barbecue garden seems a little deserted, the businesses are still there, but there are many fewer tourists who come to eat, and the seaside is relatively empty. Because there are fewer people, it is even colder, and the wind blows very strongly. As for the vicinity of the locker room where Yoo Changshou died, the police have cordoned off to prevent the scene from being vandalized.

Xu Jingnan finally came here, there is not much hope, the first three places have been carefully checked, it can be said that there is no harvest, in addition to coming here to see, I also want to relax my mood a little, after all, the seaside is a good place for tourism and leisure, and it can also help you clear your mind.

Walking around the barbecue garden, he checked as he walked, and paid careful attention to each stall, the situation of each business is basically the same, and the things provided are similar. In the end, he walked to the stall where Yoo Changshou had eaten that night, and because he had eaten here before he died, the stall seemed even more deserted, except for the boss sitting boredly in the shop, there were no customers.

Xu Jingnan was interested, he took the initiative to walk over, and the boss saw that there was a rare business coming to the door, so he greeted him enthusiastically. Xu Jingnan asked for a barbecue grill by himself, ordered five skewers of mutton, a small stack of vegetables, and a bottle of Sprite, and operated it himself. I wasn't very hungry, but when I arrived at a place like this, looking at the water, I could feel a lot of leisurely feelings from the depths of my heart.

The boss had nothing to do, and after helping him serve good dishes, he also took the initiative to come over to help Xu Jingnan operate, after all, it was still a little cold to eat alone. Xu Jingnan had planned to call him to chat, and he just wanted to ask him about something.

"Boss, how is the business lately?" asked Xu Jingnan.

The stall owner sighed helplessly and replied, "Hey, I won't tell you, we used to be very lively here, especially at night, and we had to queue up for dinner, but a few days ago, something happened to me, and now no one comes to eat at all, and today you are the first!"

Xu Jingnan smiled, "I know, there was a guest who died unexpectedly after eating a barbecue at your place and going to the locker room to change clothes, but this matter doesn't seem to have anything to do with your stall!"

"This is natural, how can it have anything to do with me? But people's words are terrifying, this is a false rumor, I don't know what it is, anyway, it means that I am unlucky here. The boss said and glanced at the other party, knowing that he had too many words, but don't scare away a guest who finally came, but he also held back for too long, the loss in the past few days is big enough, and there is no bitterness to say, it is like a dumb person eating coptis.

"Don't worry, your business will soon be as prosperous as before!" Xu Jingnan encouraged him.

"Then borrow your good words!"

The stall owner was a little confused, the customer didn't seem to mind this matter, and seemed to be confident about it, and he even suspected that the young man in front of him had any intrinsic relationship with the case.

"Then you eat, I'll go and get busy first. The stall owner made an excuse and planned to leave.

Xu Jingnan naturally wouldn't let him leave so easily, stood up and grabbed him and said, "Boss, don't leave in a hurry, I still have something to ask you." ”

"What's the matter?" the stall owner looked at him nervously, ready to run away.

Seeing that he had made the stall owner too nervous, Xu Jingnan knew that he had not grasped the proportions, so he took out his ID to show it.

The stall owner breathed a sigh of relief, "You are a forensic doctor, I thought it was the murderer who came to probe my mouth, and I was about to call the police!"

"It's my fault that scared you. Xu Jingnan hurriedly apologized, and opened the bag he was carrying, and took out the evidence bag from it, "Boss, I want to ask, how many of these steel thorns are there in each of your barbecue grills?"

"Six. ”

"Are you sure? Won't there be more or less?" Xu Jingnan raised his voice and asked excitedly.

The stall owner looked at the steel thorns in the evidence bag again, and confirmed again, "It's definitely true, everyone here knows that there are a total of six kinds of dishes that need to use such steel thorns, so each barbecue grill is equipped with six, less is not enough, more is waste, like we do a small business, these details will be very clear, so every time it is distributed, it is absolutely packed according to the standard." Moreover, this thing is still quite dangerous, if the child accidentally pokes it, it will break, so we will go to see it in person every time, and tell customers to pay attention to it and not lose it. ”

After listening to the stall owner's narration, Xu Jingnan was like an initiation, and the sorrows and troubles of many days disappeared in an instant, as if he saw a glimmer of light from the distant sky in the dark night, like the darkness before dawn, and the feeling that it was about to end.

Xu Jingnan took out all the steel thorns from a evidence bag, and he counted them again, even if he had counted dozens of times before, this time he still had to make sure that it was really seven, not six!

"Boss, please take a look, are these seven steel thorns all yours?"

The barbecue steel thorns he took out were exactly what the Liu family used when they ate barbecue that night, and it was indeed seven!

The stall owner looked at it in front of him, these steel spikes were really exactly the same on the surface, and there seemed to be no difference, he looked around and shook his head, "I'm sorry, these steel thorns are all the same, I can't tell the difference, and the merchants here basically use such steel thorns." ”

The stall owner's words dealt a heavy blow to Xu Jingnan's newly ignited hope, if it was the same, it could also be in the chaos, the steel thorns of the nearby stalls or barbecue grills were mixed with Liu Changshou's home use, because before the crime that night, the barbecue grill was on fire and fell to the ground, the situation was very complicated at that time, and this possibility existed.

"However, when I was bored before, I didn't make a QR code for all the steel thorns, and at that time I just had nothing to do, and I was afraid that others would take the wrong one, so I made it, and it didn't work, but now I can try. The stall owner opened his mouth again, and this time what he said made Xu Jingnan excited again.

"Great, then please hurry up and compare!"

Xu Jingnan prayed in his heart that there was really a breakthrough this time, he had been a little anxious by this ups and downs, and looked forward to no other accidents, if this clue was rejected again, then everything might have to be done again.

In the end, the stall owner came to an important conclusion: six of the seven steel thorns belonged to the stall owner, and the other one was not. After comparison, the boss successfully selected the steel thorn that was not his own. In terms of appearance, it is true that there is no difference from the other six, but because of the high-tech support, he can be very sure that which one is different.

And what is even more coincidental is that this selected steel thorn is the murder weapon that killed Liu Changshou, and the red-hot and deformed steel thorn fell in a hidden corner and did not hit the victim, there is no doubt that the suspicion of murder has risen sharply.

For Xu Jingnan, his work has finally made a breakthrough, and the steel thorn at the scene of the murder has been confirmed not to come from the stall owner's original arrangement, which is extra, so the first direct physical evidence has finally been found in the entire series of cases!

Holding it in his hand, Xu Jingnan's excitement was beyond words, so many days have passed, and when the case is lost, he really sees the light of day.

As a forensic doctor, the meticulous Xu Jingnan also wanted to be more sure of this, so he stood at the angle of the barbecue grill, held the steel thorn, and experimented in the direction of the locker room, he asked the stall owner to help find some uncut raw meat, placed it at the door of the locker room, and then smashed the steel thorn towards the top of the raw meat at the position of the barbecue grill.

After testing it a few times, due to the long distance, the steel pierced the door of the locker room and lost its strength, so soft that it fell to the ground, even if it could touch the meat, but because it had already become the end of the crossbow, it was hit and bounced to the ground, and it couldn't be inserted at all.

He was worried that his strength was small, so he invited the boss, a big man, who had much more strength, but only barely pierced the steel thorns into the epidermis of the raw meat, which was particularly shallow, and if it hit a bone or something, it was impossible to stay. You know, the skin of the human body is very elastic, so far away, to be completely pierced by a steel thorn, it takes quite a lot of power. Now, as a result of the experiments, even raw meat cannot be pierced, let alone the flesh and bones of adults who are much taller and more resistant.

If you want to succeed, there is only one way, and that is to use a spring-like tool similar to a crossbow or a slingshot without the help of manpower, and increase the speed of the fire, so as to produce such a strong effect and shoot Liu Changshou.

Therefore, Xu Jingnan finally made up his mind and called Li Yiting to inform him of his discovery.

The controversy in the Beiting Detective Branch continued, and Li Yiting received Xu Jingnan's report, and his serious expression slowed down slightly, which is also the most reliable evidence he has obtained so far.

Li Yiting told everyone the results of Xu Jingnan's investigation of the steel thorn, and everyone was surprised, now it seems that the whole case is indeed a well-laid out and cleverly designed murder, even Shen Mingyue couldn't help but believe this in front of the facts.

But the most critical issue is the choice of the murderer. Liu Xiaoquan is very suspicious, but he is missing, and his fingerprints have not been extracted from all the evidence, including the steel thorns, so he is still not sure enough about this.

Li Yiting made some arrangements, "Now that the physical evidence of the steel thorn has been determined, we need to continue to investigate around this aspect." However, four people have now died, and the others involved in the prophecy may still be the next target of the murderer, so their protection must be strengthened. Mingyue and Zichen, you protect Liu Xu'er and Yuan Hui'e, as for Ji Zhuo and Ji Jing, I am still mainly responsible, and in addition, I will notify the police and send people to assist us in surveillance, and now we must implement 24-hour monitoring and protection for all members of the Liu family and the Ji family! In addition, the search for Yege and Liu Xiaoquan must also be strengthened, whether they are murderers or not, they need to be found as soon as possible!"

Everyone had no objection and immediately went to the execution.