Ouyang Ping, who has always been meticulous and far-reaching, conducted another serious and careful search of the house of the three Ran Shixiong siblings before leaving the backyard of the Ran family, and Ouyang Ping did not fully believe the words of the three Ran siblings. The cause of Ran Ruzhai's death has not yet been ascertained, and the five treasures hidden in the air-raid shelter mentioned by Ran Ruzhai in his suicide note to Ran Shikai have disappeared. The investigation will continue.

The result of the search was nothing.

After returning to the police station, Ouyang Ping sent Zuo Xiangdong to drive to pick up two experts, Gu and Peng, and after the identification of the two experts, each bottle of blue and white was indeed something from the Yuan Dynasty - this is consistent with Boss Sheng's conclusion; Jade Cong is a thing of the Han Dynasty, and it is a symbol of imperial power - Boss Sheng's judgment is basically correct.

The ancestor of the Ran family was a shrewd man, and he took advantage of the opportunity to work in the Nine Industries Division to take advantage of the chaos and take away many treasures. The ancestor of the Ran family was also a foolish person, and he brought things that did not belong to him, and as a result, he laid a curse for future generations.

After sending off the two experts, Gu and Peng, Ouyang Ping and his comrades turned their attention to the anonymous note.

The person who wrote the anonymous letter clearly did not want the police to know who he was, otherwise, he would not have used newspaper cut-and-paste. There are two possibilities for hiding one's purpose: for fear of offending others; The second is to divert the attention of the police.

There is only one possible way to divert the attention of the police, and he is the murderer.

The words on the anonymous note were cut and pasted with words from the newspaper. So, in the backyard of the Ran family and among the neighbors, who has a newspaper? Who is likely to read a newspaper?

After the investigation and visit, in the backyard of Ran's house, there are two people who often read the newspaper.

One person is Chen Guoquan, Chen Guoquan is the deputy director of the district housing management office, he often brings the newspaper of the unit to his home, in addition, when he comes back from work every day, he has to hold a copy of the "Jingnan Evening News" in his hand. This situation was provided by Xie Yao's wife. She also knew that Chen Guoquan's mother-in-law often sold newspapers to those who collected rags, and the old man often used newspapers as ignition materials to make stoves.

This situation has to arouse Ouyang Ping's great attention, everyone should not forget the gray button that Chen Jie found in the secret room, Chen Guoquan's Zhongshan suit is nailed to this kind of button, after investigation, Chen Guoquan's Zhongshan suit The buttons are still there, so Chen Guoquan's suspicion was ruled out. If the button is off, it can be replaced. If you have a spare button, you can replace it if you can buy it, even if you don't have one.

Xie Yao's wife also mentioned two things:

First, Chen Guoquan aimed at the Ran family's house very early, at the beginning, it was Chen Guoquan who sent people to mobilize Ran Ruzhai to hand over part of the house, at that time, it was in the proletarian culture, the big revolution, the movement was one after another, seeing that it could not be beared, Ran Ruzhai handed over the three wings to the housing management office (now No. 186, No. 187 and No. 188) in a desperate situation; Soon after the house was handed over to the housing management office, Chen Guoquan moved into the backyard of Ran's house (No. 187).

Second, Chen Guoquan's Zhongshan decoration was made in Li Maoyuan's tailor shop, and according to common sense, after the clothes are ready, the buttonholes should be locked and the buttons should be nailed. Li Maoyuan has a characteristic of making clothes for customers, when customers take the clothes, he will give a few extra buttons to spare.

So, Ouyang Ping, Liu Dayu, Chen Jie and Han Lingling went to Li Maoyuan's tailor shop.