According to Guo Lao's opinion, Ouyang Ping still took Moling Road, Thirteen Battalions, Huashen Town and Liuyedu as the focus of the investigation.

Guo Lao's reasons are threefold:

First, Guo Lao has been exposed to six headless cases in his life -- except for "9. 27 Headless Cases", in five of the six headless cases, the victims were people in the vicinity of the crime scene, and of the six headless cases, three were related to the river, and all three of the headless cases were among the five headless cases. Water is the easiest thing to hide a corpse, so under normal circumstances, the murderer will choose the river to hide the corpse on the spot.

Second, the reason why the murderer made the deceased's head different is because the deceased was a local, and since he was a local, someone would definitely recognize the deceased, and people determined the identity of the deceased mainly by the deceased's head.

Third, (earlier, Guo Lao also emphasized this point of view) After the murderer killed the deceased, the only thought was to dispose of the deceased's body as soon as possible, although the waterway provided very favorable conditions for the murderer to dispose of the body, but since it was hidden in the underwater mud, it was the same everywhere. There is little need to go far and near. The murderer must know the Qinhuai River very well, in people's memory, the Qinhuai River has never been treated, if it were not for the pollution of industrial wastewater and domestic sewage on both sides of the river, the city government would not have spent so much manpower and material resources to remediate, the murderer is based on the understanding of the Qinhuai River to hide the body under the river mud.

Once the focus is determined, it is time to confirm the target of the investigation. After analysis, Ouyang Ping, Guo Lao, Liu Dayu, and Chen Jie decided that all men who suddenly disappeared from people's eyes between July 20 and August 10 could be the targets of the investigation. The specific conditions are as follows:

1. Be between the ages of forty-three and forty-eight.

Traditionally, at the time of autopsy, there is a suitable space to determine the age of the person.

Second, the height is between 1.67 meters and 1.710 meters.

The approximate height of the deceased can be calculated based on the corpse - and it can only be approximate height, because the neck of a person is long or short, and the size of the head is also large, so when determining the height of the headless corpse, there must also be a reasonable range.

Three, super fat.

Fourth, there is a birthmark the size of a broad bean on the back of the right hand, and there are three hairs on the birthmark (photo attached).

Five, there is a long scar above the knee of the left leg (photo).

Sixth, the toenail is very particular about trimming (photo attached).

When all the conditions of the survey subjects are in front of them, everyone has a bottom in their hearts. It is not difficult to find that when all the conditions are listed together, the scope of the survey cannot be considered large, because there are not many people who can meet all the above requirements.

So, a second notice was posted.

This notice can be seen on both sides of the river, wherever it is inhabited. At the same time, Ouyang Ping also sent Yan Jianhua and Han Lingling to get in touch with the local police station and neighborhood committee, including the village committee (seven or eight miles east of Zhonghuamen Castle had already entered Jiangning County, which was a rural area. Although this area is not in the scope of focus, Ouyang Ping still takes them into account). The so-called key areas are the Moling Road, the Thirteen Camps, Huashen Town and Liuyedu that we mentioned above.

After the first great net was cast, nothing was gained. What will happen when the second wide net is cast? Comrades are full of anticipation.