As he was talking, Tian Zhen came back. As soon as she entered the door, she first glanced at Guan Shan, who was closest to the door, and her originally serious and nervous expression instantly softened, and she couldn't help but smile.

Luo Chuan coughed twice and said, "You make the blood matter clear first, the case is solved, I asked him to invite you to dinner." ”

Guan Shan slowly turned his head to look at Luo Chuan in disbelief, Tian Zhen smiled a little embarrassedly, and opened his mouth to ease the embarrassment: "Team Luo, you are really stingy, I will send you a report, how can you let Professor Guan treat you?" ”

Luo Chuan took Tian Zhen's report with a meaningful smile and said, "As you wish." ”

The pretty face flushed slightly, Tian Zhen glared at Luo Chuan with disgust and said, "Team Luo, I see if you can laugh for a while!" The blood tests were done, and most of them were animal blood. ”

"Mostly?" Luo Chuan raised his eyes to look at Tian Zhen, and Xing Lao also waited for Tian Zhen to continue with a serious expression.

Tian Zhen said solemnly: "Yes, Team Luo, I also contacted my colleagues at the scene just now." Let them splash antibodies on the blood on the ground, and if it is human blood, it will immediately change color. They tried it, and there was indeed human blood on the scene, but not much. ”

In the police, there are countless cases where blood cannot be distinguished. Some cases may seem like rivers of blood, but not necessarily all of them are human blood. Because of this situation, in the early years, there were often some misunderstandings and oolong incidents. But now it's different, and police officers can accurately and quickly detect whether it is human blood.

The blood of red blood animals and human blood cannot be distinguished with the naked eye, because the components are similar, such as inorganic salts, blood cells, hormones, antibodies and enzymes, etc. These are not escapable. And the types of blood types of humans are also different from animals, dogs have five blood types, cats have six, pigs have fifteen blood types, and cattle even have forty blood types. For forensic testing nowadays, testing blood is a simple matter.

Tian Zhen continued to explain to Luo Chuan: "The scene is similar to the blood analysis on the deceased's clothes, because their clothes are stained with a lot of blood, including their own, animals, and other people's. However, the man's blood was not much, at least from the scene, it was not fatal. ”

When Xing Lao heard this, he hurriedly asked Luo Chuan: "Could that be the murderer's blood?" ”

Luo Chuan shook his head uncertainly and said, "You have always said that these people have been dead for three days, if there is the blood of the murderer at the scene, then ...... Who did it? As he spoke, Luo Chuan also glanced at the four corpses with his eyes, and the feeling was chilling.

Yes, people who have been dead for three days will certainly not suddenly rise up and resist.

Xing Lao thought for a while and said, "That's ...... Could it be that Xiaoxue hurt him during the fight? Let him shed a lot of blood and flee in the wilderness? ”

Luo Chuan shook his head again and said, "When Xiaoxue was carried out, the doctor told me that he was inhaled and caused a coma. Whether he had this experience or not, if he had already fought the murderer, he should not be stunned again. The likelihood of serious injury or sacrifice should be much greater than the likelihood of fainting. can quickly charm him with drugs, he shouldn't even have a chance to react, the murderer is hiding in the shadows and sneaking up. And, I took a cursory look at it at the time, and he didn't have any external injuries. If you want to fight the murderer and make him bleed a lot of blood, even if Xiaoxue completely has the upper hand, it is impossible to have no external injuries and resistance injuries at all. ”

Xing Lao sighed a little dejectedly: "Isn't that evil?" There was one more person's blood at the scene, and it wasn't the murderer's, nor Xiaoxue's, so whose was it? ”

Guan Shan touched his chin at this time and said, "It's possible...... Is it the survivor in the hospital? Don't forget, in addition to the murderer, a total of six people were injured and killed. A little snow, and an unknown life and death in the hospital. ”

Tian Zhen's eyes lit up: "Ah, that makes sense." But...... Why did the murderer bring four dead people and one living person to the scene? Isn't he afraid of variables? Could it be an accomplice? The spoils were unevenly divided, and as a result, the murderer killed him without doing anything. I didn't expect him to run away? ”

Luo Chuan shook his head again: "Judging from the way these people died, the murderer is not asking for money. These people have different ages, identities, and living environments, which can be seen from their skin and hands. The likelihood of claiming money from different people is too low. And if you want to make money, you don't have to do it this far. Since it is not for money, there is no uneven distribution of spoils. ”

Xing Lao couldn't listen anymore, walked over and looked at Luo Chuan impatiently and asked, "Are you here just to refute us one by one?" Why are you just shaking your head? Tell me what you think! ”

Luo Chuan looked at Xing Lao helplessly and smiled bitterly: "Old man, if I have a definite idea, I will say it." But not now, and I can't be sure of the motive for the murderer's actions. Just now Tian Zhen said accomplices, but judging from the situation at the scene, this person doesn't look like a person who will find an accomplice to cooperate. And what kind of dispute can kill an accomplice at the scene of the corpse? You can say that murderers are cold-blooded, but it's not about emotion, it's about safety. Since he knows so much about counter-reconnaissance methods, he should know that the police will investigate the identities of all the deceased at the scene. If he killed his accomplice and left him at the scene, then the police would have been able to follow his accomplice to touch him. Isn't it a bit costly to take such a risk? ”

"......" Xing Lao and Tian Zhen looked at each other and stopped talking. After a long while, the forensic doctor, who had been standing silently in the innermost part and did not dare to interject, weakly answered: "That...... That's the simple victim......"

Unexpectedly, Luo Chuan still shook his head and said, "Then why hasn't he been skinned and replaced on someone else's face?" ”

Xing Lao was really anxious to listen, and turned to Guan Shan and said, "Guan Shan, otherwise you should talk about it, talk to him, I really can't afford to be in such a hurry, and I am about to have a heart attack!" It's not, that's not right, what is going on with the extra blood and the person at the scene? In case the rescue fails and he dies, the clue will be broken?? ”

Guan Shan smiled gently and elegantly and said, "Don't worry, Luo Chuan doesn't like to draw uncertain conclusions." I think that person is either significantly related to the case, or it is not related at all. ”

"That...... How so? "For Guan Shan, Xing Lao is obviously more patient.

Guan Shan explained: "It is very laborious for the murderer to carry several corpses by himself, if the fifth victim is deliberately left by him, or, he has nothing to do with the case at all, and the murderer temporarily coerced him to help carry the corpses." After the deed is completed, he plans to kill people and kill people. This can explain why he was stabbed so many times, but he didn't have a face-changing logo for this case. ”

Luo Chuan walked to Guan Shan's side with some excitement, bumped him with his elbow, and teased: "Eh, what you said is almost not a word bad from what I thought!" Guan Shan, I really admire you more and more, do you know me too well, or do I also have mental illness, so I have nothing to hide in front of you? ”

Guan Shan squinted at him and asked, "So, are you going to shift the key focus to that person now?" ”

Luo Chuan thought for a while and said: "Life and death are uncertain, and I can't pin all my hopes on him." You're right, if he was coerced by the murderer just to help dispose of the body, this is in line with the murderer's anti-reconnaissance methods. If he hadn't escaped and died on the spot, then if we follow the victim's information to connect the case, we can only lead us into a dead end. Because there was such an unrelated person among the dead. ”

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