novice forensic medicine

Chapter 339 Footprint Analysis
Following the roar, everyone turned their heads to look in the direction of the door.

Cheng Zhi rushed directly in front of Zhou Ning and Cheng Xinghui, snatched the bottle away, and held it in his arms like a rare baby, his face full of anger.

"I can cooperate with you, let us tell the story, let's tell the story, let us recall the details, just recall the details, but the child's fingers can't move, it is said that the parents are affected by the body, hair and skin, I disagree, my son will follow me, We’ll get it right here together.”

As he spoke, he stretched out his hand to pull Cheng Xinghui, Director Sun and the others wanted to step forward, but they were stopped by Xu Dayuan.

"As a parent, I understand your thoughts and respect your choice. Indeed, as you said, you have cooperated very well. Tell us the details of that little guy Chen Gang and recall all the details. For parents, why not go through it again One such pain.

I said we don't force anyone to cooperate with the police, you don't believe that we are not doing a good enough job, but I will show you something, come here. "

As he said that, Xu Dayuan patted Cheng Zhi on the shoulder and motioned him to look at the glass whiteboard beside Zhou Ning. There were many photos on it, as well as the information about the deceased that Zhou Ning had summarized.

When he got closer, Cheng Zhi was also shocked by the photos. After all, few people can see such tragic photos. Xu Dayuan grabbed some partial photos of his severed fingers. They were rotten and swollen, bloody and bloody. It was bloody, but the scorched black after burning was still scary.

"Actually, we didn't think of merging the case at first, but after analyzing the murder weapon, we found that your son was the same murder weapon that had his fingers cut off. Then we retrieved the file and found that the ransom was not found in the case of Cheng Xinghui's kidnapping in 2000.

Even if there is a murderer who was shot dead, this case is not complete. The file shows that there were at least two adults at the scene, and the murder weapon was not found. Not the one who hurt your son?

This person has been on the run for 12 years. Do you want this person to continue to be at large for 12 years, and besides your son and the Zhu family, other people will continue to have their fingers cut off, kidnapped, and votes torn apart?
Moreover, he escaped by chance, probably the first time he committed a crime. He has no experience and poor psychological quality. What would the surviving child do? "

Cheng Zhi was silent, and Cheng Xinghui, whose wrist was squeezed so hard by him, broke free from Cheng Zhi's shackles, snatched the bottle, and solemnly handed it to Zhou Ning.

"Dad, I lack a finger and can't work in many professions, such as the police, such as a doctor, such as the civil servant you admire the most. From being rescued to the present, in the 12 years since I was rescued, I have often been tortured by the dream of being kidnapped.

You told me before that it was a dream, it wasn’t real, and you even took me to stick a spell or something, but I knew it wasn’t a dream. Although I was young, I recalled the pain of my severed finger every day. I don’t want to suffer from this kind of torture. Continue, I hope to help the police catch the murderer, Dad, don't you want to catch the person who hurt me? "

The son's gaze softened Cheng Zhi's heart. He held his son in his arms and patted him on the back vigorously.

"The son is the narrow-minded father. Since you agree, then cooperate."

Zhou Ning handed the bottle to Da Zhao, then wrote a name and phone number in a notebook, tore it off and handed it to Cheng Zhi.

"This is a friend of mine. He opened a psychological counseling clinic. I told your son that I was disturbed by similar dreams before and couldn't live and work. It was very helpful to talk to him, and I slowly let go of all this. , but psychological damage cannot be left alone, especially at his age, it is very detrimental to his growth."

Cheng Zhi took it with both hands, and he was no longer irritable and domineering just now. After all, he is really thinking about your child. Although he is not well-educated, he can feel the kindness.

"Thank you, what else do we need to do?"

Zhou Ning shook his head and looked at Xu Dayuan. Xu Dayuan grabbed Cheng Zhi's hand and shook it up and down twice.

"I make a promise, you and your child will work and live normally, I will let Chunyang and the others send people to watch you, and they will never withdraw until the murderer catches you."

Cheng Zhi smiled with satisfaction, this sentence was his favorite to hear.

"Then let's go first. Thank you, Director. If you need to call me later, I will ask the doctor's phone number that the little director called. See you son, let's go!"

After the father and son bid farewell, He Chunyang sent them away directly, and under Xu Dayuan's signal, they went directly to the conference room.

At this time, it was still possible to get down here, everyone sat down, Xu Dayuan raised his chin at Sun Ju.

"Sun Bureau, I won't repeat it. It's up to you to tell me about the 2000 kidnapping case in 2.3 and the information about the suspect who was killed."

Director Sun didn't talk nonsense, and directly introduced:

"This case happened on the morning of February 2000, 2, on the 3th of the twelfth lunar month. At that time, Cheng Zhi was the busiest, and the wholesale department was full of people. His eldest daughter finished her homework and went to the next door to find her two-year-old younger brother Cheng Xinghui. gone.

Everyone started to search, counted the number of people, and found that Chen Gang, who had worked in their store for four or five years, had disappeared, so they hurriedly called the police. After receiving the police, the police station notified our criminal police brigade directly. Conduct surveys.

At that time, Lao Liu was there, and he did the survey. He found three muddy footprints on the floor of Cheng Xinghui's room. The size of the footprints was 42 yards, which was the pattern of ordinary old Beijing cotton shoes. We began to deploy surveillance and went to Chen Gang's residence.

We went to his house, but no one was found. At 15:30 in the afternoon, we received a call from Cheng Zhi. The kidnappers sent a child with a note and a piece of Cheng Xinghui's finger, and asked him to use his schoolbag within three to 10 minutes. Send 90 in cash to the west gate of the park opposite the County Cultural Palace. This amount is exactly the sum of the money Cheng Zhi received today.

We thought at the time that this Chen Gang must be the mastermind, so we quickly went to wait at the west gate of the park opposite the Cultural Palace, but when the time came, no one showed up. When Cheng Zhi was looking for us, he received a call and the kidnapper asked Cheng Zhi to throw away his schoolbag. Enter the trash can in the park in the middle of the street.

We were far away, so we could only signal Cheng Zhi to follow their orders. When an old man approached the trash can, we rushed up and found out that we had been tricked. The old man was a sanitation worker, and there were many people in the park in the middle of the street. There are trees behind, and someone has already taken the schoolbag away.

We started to go back and investigate Chen Gang's situation. Chen Gang's parents died early, and he worked with Cheng Zhi during the [-]th and [-]th. Working in the wholesale department, he shouldn't have such scheming.

After careful investigation, we learned that Chen Gang has always been running into a pear orchard near the reservoir recently. There is only one beating old man here, who is still deaf. In the early morning of 2.4, we surrounded the pear orchard, observed the footprints on the snow, and finally encircled the pear orchard. Zoom out to the northernmost ring of houses.

Just when we were about to collect the net, the investigators found fresh footprints. After comparison, they found that it was the pattern of a size 42 old Beijing cotton shoe, which was the same as the sole pattern left in Cheng Xinghui's room. We hurriedly collected the net.

When I hit the door, it seemed that I heard a sound, and a black figure jumped over the wall to run away. After firing a warning shot, the other party still persisted in running away. I shot the boy in the leg, but I didn’t expect him to slide down the wall directly. He was hit in the back of the heart and died instantly.

I searched the house and found Cheng Xinghui in the closet, but he lost a lot of blood and the child stopped crying. We rushed the child to the hospital, and Lao Liu went to the scene to finish it. However, Lao Liu said that the fresh footprints found on the wall were similar to Cheng Xinghui's. The room is different, but Chen Gang is already dead, and after a few days of investigation, nothing was found, so the case was closed. "

Liu Yongxin nodded.

"At that time, I went to the city bureau to show it. Although the two footprints were the same size and the same pattern, they had different focus points. Moreover, the footprints in Cheng Xinghui's room were inner eight, while the footprints left by the wall were outer eight. , the footprints are very deep."

Following Liu Yongxin's introduction, Bureau Sun had already opened the file and distributed the photos. Zhou Ning glanced at them and handed them directly to Da Zhao.

"Look at it."

Da Zhao carefully compared the two photos, held up a magnifying glass, compared them constantly, and then did the calculations on the paper, then raised his head and said:
"The owners of the two footprints have very different heights, weights and personalities. The footprints in Cheng Xinghui's room are covered with mud and snow. I don't know how much room temperature can be in his house? What was the temperature outside at that time? To know this, You can calculate the time when someone took the child away."

Bureau Sun didn't hesitate, and directly dialed Cheng Zhi's phone number, and looked at Da Zhao after asking.

"On the 29th day of the twelfth lunar month, it was snowing all the time, and it was minus [-] or [-] degrees outside. It was not particularly cold. As for Cheng Zhi's house, although it was on the second floor, he was afraid that the child would be poisoned by soot, so he plugged in a small solar heater. At about ten degrees, he said that his children will not get sick like this, and it will not work if the temperature is slightly higher."

Da Zhao nodded, it seems that after passing the intermediate exam, his confidence has also increased a lot, and he has read so many books and papers on trace inspection with Zhou Ning, his expression is calm at this time, and he raised his head after the calculation.

"Looking at the mud and furnace ash in the gaps in the footprints, he should have entered the second floor from the backyard, and the snow he stepped on was also loose snow that was not compacted. This is in an environment with a room temperature of 20 degrees, 30-[-] minutes The inside melted into water, so I think sister Cheng Xinghui had just left when she entered.

The person who left this footprint was between 170-172 in height, thin in build, 100-110 in weight, introverted, with slightly larger shoes and flat feet.

Another footprint in the snow outside the wall, height between 175-178, medium build, weight between 140-150, bold personality, before landing on the soles of the feet, with long strides and powerful running, the real size should be 43 yards , The shoes are brand new, there are colloid particles on the pattern, it doesn't feel like his shoes. "

Da Zhao's analysis stunned Ju Sun. Looking at Xu Dayuan and the others, he pointed at Da Zhao and said with emotion:
"This kid speaks clearly and logically, but is it because he is so powerful now?"

(End of this chapter)