"Why?"

"First, the yellow mud in the brick gap of the city wall should be an important support, whether it is Huashen Town, or the Thirteenth Camp and Liuyedu and Moling Road, these three are not far from the place where the corpse is displayed."

"And the second?"

Judging from the murderer's modus operandi, this can also be illustrated, the murderer has cut off the deceased's head, and the murderer has also taken off all the clothes on the deceased's body, so there is no need to go far. The murderer is afraid that people will recognize the dead, but who is afraid of recognizing the dead? It must have been a local person - from which it can be inferred that the deceased must have been a familiar face in the local area, and there must have been more people who knew him - which also provides us with another important idea. ”

"Aren't there some distinguishing features on the deceased?"

In the eyes of the murderer, these characteristics are not important, and of course, it may be that the murderer did not notice them - or that the incident happened suddenly, and the murderer ignored these details in a hurry and hurry. The third point is that if the distance of transferring the body is too long, there will be an unexpected situation -- after the murderer kills the deceased, he is in a hurry to dispose of the corpse, so, under normal circumstances, the murderer will not choose a place far away to sink the body, and on the west side of the crime scene, there is a ferry, and the ferry should be 24 hours a day -- all-weather service, the population density on both sides of the strait is relatively large, and the ferry port is the only passage for people on both sides of the strait to come and go, so this ferry port should be relatively busy, you see-" Guo Lao pointed to the ferry lane. As soon as the ferry left the south bank, there were many people gathered on the wharf, and I had already noticed that the ferry had to go back and forth every quarter of an hour, and there was no chance to rest on the shore. ”

"Guo Lao, I have a question, I don't know if to ask?" Han Lingling listened to the conversation between Ouyang Ping and Guo Lao while thinking about the problem.

"Xiao Han, you say."

"The water level in the center of the Qinhuai River is very deep, why did the murderer sink the body about five meters from the river bank?"

"That's right! I've thought about this question too. Ouyang Ping said.

"Yes! The water level in the center of the river is indeed very deep, you see-" Guo Lao pointed to several boats on the river.

There are three boats moving forward on the river, one is a motor boat - to the east, the power is a diesel engine, four people can hear the roar of the diesel engine, this motor boat walks in the center of the river, two boats are small wooden boats - one in front of the other, heading west, these two wooden boats are walking close to the river, the power of the two wooden boats comes from the boat penny in the hands of the boatman.

"Guo Lao, I understand, you want to say that the murderer used a small wooden boat, and if you go from the center of the river, the boat will not reach the end."

"Yes, that's one reason, and one important one. The time of the crime was at the end of July, when the water level of the Qinhuai River was the highest and the speed of the water was the highest; for the sake of safety, the murderer's boat would definitely have to walk close to the riverbank, and if the murderer was a novice who was not good at supporting the boat, he would have walked close to the riverbank, and it would be easy for people to find out, especially at the ferry, and if there were people at the ferry, the boat would definitely be seen. As a thief, the murderer will definitely try his best to avoid being seen. ”

Ouyang Ping had to admire Guo Lao's analysis, although he was a forensic doctor, but he had been exposed to countless cases in his life, he was well-informed, Director Feng asked Guo Lao to assist Ouyang Ping's work, in addition to the advantages of forensic science, more important is Guo Lao's years of accumulated criminal investigation experience.