Fina was stunned for a moment, then her face changed drastically: "You mean... my father? How is this possible!!"

"Nothing is impossible." Jian Jing said calmly, "Why is the case so complicated? Because we all got the premise wrong. What happened the night before yesterday was not an accident at all. It was arranged by the professor."

She looked around at everyone and said word by word: "It was the professor who planned the murder that night."

The air was suddenly silent, and everyone was speechless, not knowing what to say.

Jian Jing said: "Because of the previous accident, the GPS system was upgraded again, eliminating the possibility of intrusion by outsiders, but this is not difficult for the professor. It is easy for him to forge the record of No. 21, right?"

Chen thought for a moment and nodded silently.

Fina couldn't accept it: "Why did Dad do this?"

"He needs an alibi." Jian Jing said slowly, "The night before yesterday, he was going to kill someone."

Fina's heart was in suspense: "Who?"

Jian Jing didn't answer this question, and said to himself: "Murdering is not an easy task. The professor is good at using guns, but if he acts rashly, it will be easy to trace him. He needs a suitable scapegoat, an alibi. It happened that day that Chen discovered something abnormal in wild animals, and reporter Li provided a piece of information - there was a firefight between neighboring countries, and perhaps some criminals escaped into this forest."

Reporter Li took a breath and murmured, "Yes, I said so."

"This is a perfect opportunity." Jian Jing said, "The professor forged the record of No. 21 to make everyone think that he was not at the observation point. In this way, as long as he finds an opportunity to separate from others, he can come back here and quietly implement his plan."

At this point, Mrs. Lao seemed to have understood something and hesitated to speak.

"But the gathering time is 1 hour. It takes at least 80 minutes to get back here from the separation point and then go to point 3. The professor obviously can't get back in time, so he needs an excuse to delay himself for 20 minutes.

"He decided to use Polly. By injecting Polly with anesthetics to create the illusion that he was hit by a tranquilizer bullet, he could both invent a non-existent criminal and explain why he was delayed - and this plan also proved that the person he wanted to kill was not Mrs. Lao, Fina or Chen, otherwise he would not have needed to take action against Polly.

"The plan is very clear up to this point, but it seems not perfect enough. What's missing?"

Her tone suddenly became light, revealing the owner's happy mood: "Gun, it's the sound of gunfire. He found the enemy, how could he not shoot? Therefore, the professor needs to prepare at least one more bullet."

"The first one is used to kill people, and the second one is used to create the illusion of discovering the enemy." Jian Jing said very carefully, "So, he must have 11 bullets, no more or less."

Fina bit her lip: "But this still means one bullet is missing."

"Be patient." Jian Jing smiled, "Let's continue analyzing along the same line of thought. The professor should have returned to the hotel and killed the person he wanted to get rid of...but why did he appear at point 3 so long in advance?"

Mrs. Lao: "Why?"

"There are two possibilities. First, his plan was discovered by someone, and it could only be one of the three of you. However, as I said before, you couldn't prepare to kill the professor in advance, so there was no need for the professor to fire that shot.

"So, there is only the second possibility, that he changed his mind on his own initiative. Although the professor is an extremely jealous man, he is also an animal conservationist. I think his career is the only thing that can make him give up his personal gain and change his mind."

Jian Jing looked around at everyone and said slowly, "He found someone. "

Chen's gaze fell on Charlie and reporter Li.

President Kang was certain: "It wasn't a doctor."

Jian Jing nodded: "If it was a doctor, the professor would be sorry for the opportunity given by God if he didn't shoot. He prepared an extra bullet, and then he just had to return to Point 3 on time and exchange the two Type 56 guns, and the weapon would become the gun that anyone could get - by the way, this should also be the reason why the professor arranged a gathering at Point 3, he needed to exchange two guns. "

"But unfortunately, that person was not a doctor." She sighed softly and looked at reporter Li, "It was you."

Reporter Li was stunned: "Me? How is it possible, I went to bed that day." "

"An accident happened to a wild animal, and you, who have written an interview, were not curious about the result at all, and went straight back to the room and fell asleep. Is this scientific? "

He said, "I was too tired that day. You can't suspect it was me just because I went to bed early."

"I used the process of elimination. The doctor once said that he couldn't provide an alibi for himself, and asked me to ask you if you saw him. If he was not in the hotel at the time, it would be easy to be exposed if he said such a thing. Moreover, you said you went to bed early, but I remember that the lights in your room were on all the time."

"What kind of evidence is this? Is it okay if I forgot to turn off the lights?" Reporter Li retorted, "Maybe the doctor made a dummy, thinking that I would give him an alibi. In my opinion, the doctor might have known that the professor wanted to kill him, and asked him to meet somewhere to talk, and then took the opportunity to kill him."

To his surprise, Jian Jing said, "I have also considered this possibility, but I'm sorry, I have a little knowledge of forensic medicine. "

She gestured slightly: "Through the bullet wound, using trigonometric functions, we can calculate the shooting angle."

Reporter Li's eyebrows moved slightly.

"I will not repeat the specific calculation process. In short, based on the calculation results, I found that the murderer's hit angle was 60° horizontally downward, so the complementary shooting angle is 30°."

Jian Jing gestured with her hand as if she was raising the barrel of a gun, and said: "The professor's wound is on his chest. The 30° angle means that the gun is positioned lower than his chest, but Dr. Charlie is higher than the professor."

Mrs. Lao suddenly realized.

"If it was Charlie, his gun should be pointed downward instead of upward. "She said, "The murderer is a little shorter than my husband, but..."

Mrs. Lao looked at the people present and smiled bitterly: "The only ones shorter than him are Fina and me."

"Height is not a conclusion." Jian Jing overturned their ideas for the Nth time and analyzed, "If it was an acquaintance who suddenly attacked, would the professor have a chance to shoot?"

Everyone thought about it and shook their heads.

It was normal for Chen, Fina, and Mrs. Lao to be holding guns. Professor Lao was unlikely to be suspicious, so if they suddenly opened fire, the professor would most likely die on the spot and would not be able to shoot back.

However, if he met Dr. Charlie or reporter Li and found that they were holding guns, especially the former, the professor would not be able to help but be vigilant.

Once the two sides exchanged fire, they would definitely look for cover as soon as possible.

Under such circumstances, it was normal for the professor to be shot in the arm, but how could he be shot in the chest without any defense?

Moreover, considering the professor's violent shooting habits, why did he only fire one bullet during the exchange of fire?

Chen said, "Ambush."

​​"I think so too. The professor secretly followed the suspect and was led by him to the vicinity of Point 3. Then, the murderer found a favorable terrain and ambushed him."

At this point, Jian Jing paused for a moment before saying, "Of course, it is impossible to judge whether it was a doctor or a reporter, but everyone should not forget one thing - the professor only brought one more bullet."

Fina was confused: "What do you mean?"

"Why only one more bullet?" Jian Jing repeatedly emphasized, "It's very simple. Although it is not difficult to bring more bullets to create the illusion that someone else fired a gun, as long as the shell is investigated, it can be identified which gun it is."

Don't think that they are all Type 56, and there is no difference in the shell after firing. In fact, there is a big difference.

There are four types of marks on the bullet heads.

1. Bump marks: When the bullet enters the chamber, the bullet tip collides with the internal structure of the gun, and the bump marks are different for different gun structures.

2. Bullet pull marks: The gunpowder gas pushes and the bullet head is pulled out from the mouth of the bullet shell.

3. Slope bore marks: The scratches left by the bullet head passing through the gun barrel can reflect the characteristics of the surface of the gun barrel.

4. Rifling marks: After the bullet head is pushed into the rifling, it rotates forward and forms a series of rifling marks, which are divided into positive rifling marks, negative rifling marks, main ridge marks, secondary ridge marks, etc.

When the shell is ejected, the bullet head will also be deformed by force, and new marks will appear.

Therefore, even if they are all 7.62 mm bullets, it can be judged whether it is caused by the Type 56, and which Type 56 it is, and it is impossible to confuse it.

Since Professor Lao knew that he had to exchange two guns, he would not forget this.

"If he used his own pistol to simulate the opponent's gunshot, if he picked up the bullet shell, things would be troublesome. Therefore, the best way is to claim that the opponent has a pistol."

Jian Jing said, "Since the opponent has a pistol, then he must have needed this thing when he murdered someone."

Fina finally understood: "Dad brought a pistol? The gunshot..."

"Yes, the gunshot you heard was not from Professor Lao, but from the murderer."

"We only heard one shot..." Mrs. Lao was surprised, "But weren't there two wounds?"

"Three, but it was indeed one shot. The bullet went through his arm and shot into his heart." Jian Jing said, "This can also explain why the other guns were not short of bullets. The one that was used was the one that Professor Lao carried, and it was prepared to kill people."

She had carefully examined the professor's body before. Although it was difficult to judge due to the changes in posture, after careful comparison, it was not difficult to find that the three wounds were in the same straight line. A

light gasp sounded in the room, and it was unclear whether it was a sigh or a sigh.

Chen said: "If it's one shot, he's a very good shooter."

"Not only is he a good shooter, but even though there was a moon that night, the forest was dense with trees and the light must have been extremely limited. To kill someone with one shot in such an environment, you need auxiliary equipment."

Jian Jing looked at reporter Li and smiled: "For example, a camera, and another example, the infrared sight on the camera."

It is not new for cameras to be equipped with infrared equipment, especially for shooting birds in the wild, where infrared sighting can solve the problem of too long focal length.

Reporter Li claimed that he wanted to shoot wild animals, so it was normal for him to have such infrared equipment. Previously, when they were taking pictures on a boat, she saw that one of his cameras had a built-in infrared sight.

"I think this can also explain when Professor Lao fired that shot." She said, "He saw the infrared laser and immediately fired back, but at the same time, the bullet also shot into his chest."

"Oh My God." Fina whispered, covering her cheeks in pain.

"Perhaps the murderer did not expect that his results would be so perfect. He examined the professor's body and found a pistol and extra bullets, so he had an idea and loaded his own gun and took away the professor's pistol, creating the illusion that he was killed by two guns, and it was also convenient to hide himself."

Jian Jing said: "As for the murder weapon, I think it was the one at observation point No. 3. Only in this way can it be more consistent with the statement that the intruder accidentally killed the professor-right? Reporter Li, this is the news you told everyone."