Attending ex-girlfriend's wedding, arresting the groom's officer on the spot

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 all reported that they had not seen anyone suspicious recently, and 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 they still have to go back and analyze the specific situation.

There are a lot of things collected here during the current survey, and it took me a whole 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 thumbs on his temples, feeling a little headache.

"Let's talk about the situation first. From the action team's side, Zhang Hui, you come first."

Zhang Hui nodded, because the case happened suddenly and all the materials were oral, so there were no PPTs.

“Let’s talk about the circumstances of the report first.”

"At 12:30 noon today, the Huaguang Street Police Station received a report that a murder was suspected."

"The first to arrive at the scene were two policemen from the Huaguang Street Police Station, Yang Lin and Zhang Baohe."

"The person who reported the crime is a housekeeper."

"The cleaning lady's name is Zhang Suzhen. We have already investigated. Female, 42 years old, working as a cleaning lady 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 the owner is away most of the time when she comes, I didn't notice anything wrong at first."

"As for the key, Yang Qianqian left it at the housekeeping company three years ago."

"During the cleaning process, Zhang Suzhen found that the sewer was blocked and used a simple device she carried with her to communicate with the sewer."

"As a result, I found a stump that looked like a finger, and then called the police."

"I'm taking notes in the interrogation room now."

"We focused on visiting and investigating the property management company, as well as the neighbors who were upstairs and downstairs on the left and right of the crime scene."

"The property management did not provide any particularly useful information. The monitoring 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."

"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 much 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, it is very likely that the deceased is Yang Qianqian herself, but the specific situation has to wait for the conclusion of the current investigation."

What Zhang Hui gave here was some basic information and introduced the ins and outs of the case.

"How is the situation here currently?"

Liu Guodong straightened up: "There are more clues found in the current survey."

"We found a bloody axe, a roll of plastic paper and a chopping board in the kitchen."

"Based on the blood spatter found in the kitchen, the murderer probably 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 sound heard by the neighbors is basically the sound made by the murderer using a meat grinder to destroy the corpse." "However, there is no clue yet as to how the murderer disposed of the bones."

"The extraction of clues from the living room and bedroom was not particularly smooth. The cleaning staff had already cleaned the house to a certain extent before discovering that the sewer was blocked. 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 hair in the bedroom and found some fingerprints in the living room. We are currently conducting identification and analysis, and the results will have to wait."

"That's probably the situation here."

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.

"Lay out the work."

Qin Yong looked at Zhang Hui: "Operation Team [-] needs to figure out Yang Qianqian's social relationships as soon as possible."

"The cleaning staff comes to Yang Qianqian's room to clean it once a week, so from this point in time, it can be judged that the time when Yang Qianqian was murdered was within this week."

"I want to know who Yang Qianqian has met and where she has been during this week. All the circumstances must be investigated clearly."

"The focus is on whether there are emotional or financial disputes."

"Yes!"

"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!"

There is actually not much pressure on Liu Guodong.

Although the murderer left many things at the scene, detection was not slow.

When Liu Guodong returned to the field investigation laboratory, Yang Sen was doing DNA comparison.

The fingers in the sewer were not completely rotten, and the hair found in the bedroom was relatively easy to extract DNA material. Comparative results will be available early tomorrow morning.

From the perspective of evidence, determine the identity of the victim.

Lu Chuan was appraising the axe, plastic paper, and chopping board.

"How about it?"

"The fingerprints on the ax were erased and have no value or clues. Some fingerprints were found on the plastic paper, but I think it is unlikely that it is the murderer. 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'll tell Zhang Hui later that they will investigate Yang Qianqian's social relations tomorrow. The other party is a graphic model. It is possible that they will leave their fingerprints when signing the contract to see if they can match it."

Naturally, it is impossible to leave 10 fingerprints when signing a contract. Generally, it is the fingerprint 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.

In the evening, the field survey team may have to work overtime very late, but the action team rested early. Tomorrow will be the highlight of the action team's battle. (End of chapter)