Chen Jie changed a cigarette and continued: "The murderer may not know that Mr. Ma withdrew 260,000 yuan from the bank. He originally just thought that Mr. Ma's house was stealing, and the money would not be a lot, but there must be, and gold and silver jewelry are indispensable. The murderer accidentally found 260,000 yuan in the process of stealing. ”

"I think Deputy Chen's idea makes sense," Zuo Xiangdong said, "Does Mr. Ma's family have any gold and silver jewelry, we have to ask Mr. Ma's father and daughter, and also, does Mr. Ma's family usually have the habit of putting a lot of money at home?" Teacher Ma's family, except for the 260,000 yuan missing, have any other things been stolen? Where do you usually put the valuables in Mr. Ma's house? ”

"If it weren't for someone Teacher Liu knew, she wouldn't have opened the door." Han Lingling said.

"This person must be someone that Mr. Liu knows, not only does he know, but he is also very familiar with the situation of Mr. Liu's family."

"Who could that be?" Li Wenhua said.

"We can bring the workers who decorate Mr. Ma's house into our sight." Chen Jie said.

"That's right! The decoration of Mr. Ma's house should be more familiar with the situation of Mr. Ma's house, the decoration started in August this year, Mr. Ma's house has just moved in, and the decorating workers should be more familiar to Mr. Liu. Liu Wenbin said.

"Maybe the killer didn't even have to knock on the door." Left to the east, a sentence suddenly appeared that made everyone scratch their heads.

"Zuo Xiangdong, do you want to say that the murderer has the key to Teacher Ma's house?" Liu Dayu said.

"This kind of possibility is not impossible, even if the murderer does not have the key, he can knock on Mr. Ma's door. If the murderer had the key, it would have been easier to open the door of Mr. Ma's fake room. Li Wenhua said.

The author would like to add two points here:

First, in the 90s of the 20 th century, the housing prices (average market price) in Jingnan City were about 2,000 yuan per square meter, and Mr. Ma's house was the largest -- there were more than 90 square meters, and a house with a market value of more than 200,000 yuan cost 200,000 yuan for decoration alone, which could not be regarded as luxurious.

Second, the security door at that time was not the same as now (the current security door has been updated several times), the security door at that time was welded with hollow strip steel, and the key of the door lock was not like now, there are two kinds of keys to the current security door, one is the key of the special decoration, the decoration is over, and the decoration key is invalid, so the workers who decorate Mr. Ma's home can match the key themselves before returning the key to Mr. Ma's house.

The security door of Mr. Ma's house was welded with hollow strip steel (at that time, there was no such security door as it is now).

Chen Jie's words seemed to open everyone's minds.

"Spending so much money on decorating, it's easy for some people to have an idea." Liu Wenbin said.

"Captain, does Mr. Ma have a doorbell?" Han Lingling said.

"It's—we don't care." Ouyang Ping had already realized that there were some negligences in the survey yesterday evening.

"If the murderer rings the doorbell, the old couple of the Hao family should be able to hear it." Li Wenhua said.

"Even if there is no doorbell, as long as the murderer knocks on the door, the Hao family should be able to hear it." Left to the east.

"The investigation started tonight, and now, most of the people are at home." Ouyang Ping decided to act immediately.

The case analysis will be completed in a hurry.