"Well, is it the same type of bullet? If so, is it certain that it was a gun, or that the same person did it? ”

Jiang Chonglang shook his head: "Although the model of the bullet is the same. But it is not yet certain whether it is the same gun, or even the same kind of gun. First of all, the range of use of this bullet is so common that many pistols can shoot it. Again, we have only found bullets now, and we still need to find bullet casings, and after comparing traces, we can determine whether these two bullets were fired from a pistol. However, this time, the glass shattered markedly, so we can determine the shooting distance of the murderer through ballistic experiments. ”

The members of the serious crime team gathered together to watch the meeting again, and this time Shen Bin stood in front and said: "Team Jiang, after our observation and analysis of the windshield that was shot, we found that the shattering marks of the glass that was shot were very uniform, showing traces of concentric circles. It shows that the bullet is not fired horizontally, but may be fired vertically. If the bullet is fired horizontally, the lower part of the glass will be more shattered than the upper half. ”

The windshield on the car is generally installed at an angle, so that the car can reduce drag during driving; In addition, when driving at night, if there is a front light, the inclined glass can reflect more light than the vertical glass, which can reduce the incidence of accidents. And if the murderer is a professionally trained person, then he must know that vertical shooting is much more lethal than horizontal shooting, so he must choose the former.

"Brother Chong, can I do a ballistic experiment today, hurry up and let me meet your sharpshooter and see if it is a hundred shots." Jiang Chonglang, who was thinking about it, was pulled back into reality by Han Yuchao, who pushed the door in.

"Yes, I'll call Cui Ju immediately and ask him to arrange the experimental location and prepare the experimental equipment."

"Sister Lan Shan, are you going. See the ability to shoot at Brother Chong. Han Yuchao deliberately used the word "shooting" with an accent, of which the word "shooting" is the most important thing to say.

"I'm not going, I still have work to do. Besides, I don't like to hear the 'bang-bang' sound when I shoot a gun, it makes me dizzy," Zhang Lanshan refused with a smile.

"Yes, anyway, Sister Lan Shan already knows that my ability to 'shoot' at Brother Chong is very strong, so it's okay not to go." After finishing speaking, Han Yuchao ran out quickly, without waiting for Jiang Chonglang to continue speaking. Because he knew that he would not run out again, and it was estimated that the scene in the bath last time would be repeated.

Half an hour later, Jiang Chonglang, Han Yuchao, Xue Ran, and Shen Bin drove four people to the shooting range of the Yangcheng City Public Security Bureau, which was specially used for the police to practice on a daily basis. Among the four people, except for Han Yuchao, the other three people all boasted that they were sharpshooters who wore through Yang in a hundred steps and hit a hundred shots. Jiang Chonglang said: "Okay, then let's compare, which one loses to dinner." ”

"Hello, are you Senior Brother Jiang Chonglang, I didn't expect to see you here." Suddenly, a heroic policewoman appeared in front of the four people, with a fair complexion, neat short hair, and a pair of big watery eyes staring directly at Jiang Chonglang, and Jiang Chonglang was embarrassed.

Jiang Chonglang felt that the face in front of him seemed familiar, but he couldn't remember who she was: "Sorry beauty, have we met, are you..." Jiang Chonglang quickly searched for her name in his mind, but unfortunately after thinking about it for a long time, he still found nothing, and he didn't have the slightest impression.

"My name is Wen Caiyu, your junior sister. Senior brother, you have forgotten that our group of people who went to school often gathered around you back then, asking you this and asking you that. You see, you're really a noble person, and you forget things. The policewoman in front of her said with a smile, her eyes blinking at Jiang Chonglang.

"You're a Wen... Caiyu, hey, I remembered. Jiang Chonglang finally got up and matched the name with the person, "It turned out to be a little junior sister, I haven't seen you for a long time, it's really a female college eighteen changes, and the more she changes, the more beautiful she becomes." By the way, little sister, where do you work now? ”

"Since I graduated, I've been in Yangcheng City all along. Senior brother, I didn't expect this world to be so small, I didn't expect us to meet here. ”

Seeing his junior sister in the same school, Jiang Chonglang was also very happy. Although he didn't have much intersection with Wen Caiyu when he was in college, it was always a very happy thing to meet an old friend, and the other party still admired him.

The two of them have been talking for almost ten minutes. Jiang Chonglang estimated that he had almost forgotten what he was doing today, and Han Yuchao finally couldn't help it: "Brother Chong, if you don't conduct any more experiments, you will close the door here in a while." ”

After listening to Han Yuchao's words, the two stopped talking, and Wen Caiyu also had her own things to do, but before saying goodbye, the two exchanged WeChat and phone numbers.

Jiang Chonglang looked at her back and said: "I haven't seen this little girl for many years, I can't remember what he looks like, I didn't expect that after a few years, he will become more and more beautiful." ”

Han Yuchao glanced at him: "Brother Chong, you praise other women so much behind your back, be careful that after Sister Lan Shan finds out, she will punish you for kneeling on the washboard." ”

Jiang Chonglang received a pistol and 50 7.62mm caliber bullets from the person in charge. These are counted, and they must be returned after use, and they cannot be taken out.

"The effective range of this pistol is 50 meters, and the bullet is fired vertically. It shows that the murderer's position is slightly higher than the location of the road. The last time I found Xue Jingfan's body, I took a look at the mountain outside the road, and it was about 50 meters away from the road. So let's choose a distance of about 50 meters and shoot a few times. Let's see if we can get the same glass crack as the crime scene.

Four people stood in front of the target, less than 3 to 5 meters apart from each other. Jiang Chonglang first began to inspect the gun, and the purpose of the gun inspection was to prevent accidental misfire during the firing. After inspecting the gun, Jiang Chonglang first raised his gun to aim at the glass in front of him, and with a "bang", the glass in front of him pierced a hole. Immediately afterwards, Jiang Chonglang handed over the gun to the three people behind him at one time.

"Bang", "bang", "bang" were three more gunshots, and three holes appeared in the glass on three other sides.

"Haha, it looks like my shooting skills aren't bad." Seeing that he didn't miss the target, Han Yuchao jumped up excitedly.

"Yes, yes, Xiaochao is really a teachable child." Xue Ran and Shen Bin also exclaimed.

"Brother Chong, look, the cracks on this piece of glass are almost exactly the same as those on Xue Jingfan's car." Han Yuchao pointed to a bullet hole in a piece of glass and said.

The hole in this glass was made by Xue Ran, and the shooting distance was about 48 meters, and it seemed that the murderer's shooting position was almost there. In this way, you will be able to determine an approximate firing range when you go back.