Compared with the large amount of physical evidence found during the on-site investigation, the visit and investigation by the action team went very poorly.
Neighbors upstairs and downstairs and on the left and right reported that they had not seen anyone suspicious recently, and that no one was very familiar with Yang Qianqian who lived here.
There is only one monitoring device at the gate of the community, but the clarity is not high.
The action team has already gone to the property to make copies, and we still need to go back and analyze the specific situation.
There are a lot of things collected here during the current survey. It took me a busy afternoon to complete the site survey.
After sealing off the scene, the sun had already set when everyone from the criminal investigation detachment returned. It was already past 6 pm when they arrived at the detachment.
Lu Chuan and Yang Sen Laobai went directly to the field investigation laboratory for identification and analysis, while Liu Guodong went to the conference room to hold a case analysis meeting.
Qin Yong was sitting at the head of the conference room, pressing his thumb on his temple, feeling a little headache.
"Let's talk about the situation first. From the action team, Zhang Hui, you come first."
Zhang Hui nodded, because the case happened suddenly and all the materials were oral, so There are no more PPTs.
"Let's talk about the reported situation first."
"At 12:30 noon today, the Huaguang Street Police Station received a report that a murder was suspected."
"The first person to arrive at the scene was Huaguang Two policemen from the Street Police Station, Yang Lin and Zhang Baohe."
"The reporter is a housekeeper."
"The cleaner is named Zhang Suzhen. We have already investigated. Female, 42 years old, working as a cleaner at Good Helper Housekeeping Company. ”
"According to the information provided by Zhang Suzhen, she has been cleaning the room at the crime scene for three years and comes here to clean it once a week."
"Because she comes regularly and most of the owners are there when she comes. I wasn't there at all, so I didn't notice anything wrong at first."
"As for the key, Yang Qianqian left it at the housekeeping company three years ago."
"Zhang Suzhen was cleaning the house. I found that the sewer was blocked, so I used a simple device I carried to connect to the sewer."
"I found a stump that looked like a finger, and then called the police."
"People are now taking notes in the inquiry room."
"We focused on visiting and investigating the property company, as well as the neighbors who were upstairs and downstairs around the crime scene."
"The property management did not provide anything special. Useful information. The surveillance facilities in the community are relatively backward. There is only a standard definition surveillance camera at the gate. "
"We have copied the surveillance data for a week, and Xiao Zhang is watching the video."
"While the neighbors reported that they had not found any suspicious persons in the building recently, the residents of 603 reported a more important piece of information. In the past few days, they had been hearing the hum of a meat grinder grinding meat in the room next door where the crime occurred. .”
“But at the time I thought I was making dumpling fillings, so I didn’t pay special attention.”
“The renter’s name is Yang Qianqian, female, 26 years old, who rented the house three and a half years ago, and is a graphic model. "
"Judging from the current situation, the deceased is likely to be Yang Qianqian herself, but the specific situation has to wait for the conclusion of the current investigation."
Zhang Hui gave this. It contains some basic information and introduces the ins and outs of the case.
“How is the situation here during the current survey?”
Liu Guodong straightened up: "There are more clues found in the current investigation."
"We found a bloody axe, a roll of plastic paper, and a chopping board in the kitchen."
>"Based on the spray of blood found in the kitchen, the murderer should have dismembered the body in the kitchen."
"Lu Chuan is trying to extract fingerprints from the wooden handle of the ax and plastic paper."
"As for what Zhang Hui said, the buzzing noise reported by the neighbors was basically the sound made by the murderer using a meat grinder to destroy the corpse." "However, as for how the murderer disposed of the bones, No clue yet.”
“The extraction of clues from the living room and bedroom was not particularly smooth. The cleaning staff had already cleaned the house before discovering that the sewer was clogged. Many traces had been erased and destroyed before calling the police.”
“As for the footprints, there are no traces. The ground has been mopped, so there are no useful clues.”
“However, we extracted some hairs in the bedroom and found some fingerprints in the living room. , it is currently undergoing identification and analysis, and the results will have to wait a while.”
“The situation here is probably like this.”
In these cases, although the murderer's methods of committing crimes are very cruel, from the perspective of detection, they may not be difficult.
At present, it can basically be determined that Yang Qianqian, the renter of the house, should be the victim.
Then the next focus of solving the case should be to investigate Yang Qianqian’s social relationships.
"Deploy the work."
Qin Yong looked at Zhang Hui: "Operation Group 2, we must figure out Yang Qianqian's social relations as soon as possible."
"The cleaning staff comes to Yang Qianqian's room to clean once a week, so from this point in time, it can be judged that Yang Qianqian was murdered during this week."
"I need to know that Yang Qianqian has seen everyone during this week. Who they are, where they have been, and all the circumstances must be investigated clearly."
"The focus is on whether there are any emotional or financial disputes."
"Yes! br>
"In addition," Qin Yong looked at Liu Guodong: "We need to work hard on the current survey and sort out valuable clues as soon as possible."
"Yes!"
Liu Guodong is actually not under much pressure.
Although the murderer left many things at the scene, detection is not slow.
When Liu Guodong returned to the current exploration laboratory, Yang Sen was doing DNA comparison.
The fingers in the sewer are not completely rotten, and the hair found in the bedroom is also easier to extract DNA material. The comparison results will be available early tomorrow morning.
From the perspective of evidence, determine the identity of the victim.
Lu Chuan is appraising the axe, plastic paper and chopping board.
"How is it?"
"The fingerprints on the ax were erased. There is no value or clue. Some fingerprints were found on the plastic paper, but I think it is the possibility of the murderer. It’s not too big. It should be the remaining fingerprints of the deceased.”
“Does the library have Yang Qianqian’s fingerprint information?”
Lu Chuan shook his head: "No, I just tried to compare the fingerprints found on the plastic, and there was no success."
"I will tell Zhang Hui later that they will investigate Yang Qianqian's social relations tomorrow. The other party is Flat models may leave their fingerprints when signing the contract, let’s see if they can be compared.”
It is naturally impossible to leave 10 fingerprints when signing a contract, usually the fingerprints of the right index finger. .
But this kind of thing can only be touched.
This is how solving a case is, it does not mean that a case with many clues can be solved.
There are dense clues in many cases, but none of them are very specific.
But in some cases, there may be only one clue, but this one clue can catch the suspect.
The field survey team may have to work overtime very late at night, but the action team took a break early. Tomorrow will be the highlight of the action team’s battle. (End of this chapter)