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

"You..."

Gao Xiang thought Wang Song had made a discovery.

But Wang Song shook his head, he didn't find anything.

The people in the BZ City Criminal Investigation Detachment are not idlers. If it was really that easy to investigate, they would have found it long ago.

"But the murderer killed four people in a short period of time. Why did he take such an extreme approach? I think this is a direction we can investigate next."

Li Donglin deeply agrees with Wang Song's suggestion.

The murderer killed four people in a row in more than a week, and he used the same method. What does this mean?
Li Donglin has been doing criminal investigation for so many years, so of course he knows.

From a normal perspective, the murderer definitely does not want to be caught when he kills someone.

But this murderer is different now.

Killing four people in a row in a short period of time, all in the same place, is bound to attract the police's attention.

It was precisely because the other party had killed many people in a short period of time that the Provincial Crime Team took action.

The crazier the murderer's methods of committing crimes, the more people he kills, and the more masters he attracts to solve the crime.

The greater the risk of being caught yourself.

Therefore, the murderer must have some specific reason for doing this.

He had to take such drastic measures to kill people.

Luo Qiang took over: "I have led people here to conduct a preliminary investigation of the nearby surveillance cameras."

"At present, no suspicious persons have been found."

"The time when the deceased was killed was 1:30 a.m. yesterday. During this time period, we checked the surveillance video of the community and verified the identities of all people entering and exiting."

"Except for the two delivery boys, everyone else is a resident of this community."

"Of course, it is not ruled out that the murderer entered the community through other means. The walls of this community are not high and there is no electronic anti-theft installed."

"Everyone, look here."

Luo Qiang's investigation has made some progress.

"After no clues were found in the surveillance, we conducted a careful inspection of the entire community wall, in the northeast corner near the north gate..."

On the projector was a picture of a fence.

"There are obvious trampling marks here. The marks are fresh and may have been left by the murderer."

"A bunch of footprints were found outside my wall. The rubbings have just been completed and have been sent to Lu Chuan."

When Luo Qiang was reporting here, Lu Chuan happened to receive the shoe print model sent by Luo Qiang.

"Where did you get it?"

The person who brought the things over was a criminal policeman from the BZ City Criminal Investigation Brigade: "After the incident, we followed Captain Luo to investigate the surveillance."

"Nothing suspicious was found. After that, Team Luo took us around the wall of the community, and then found traces of stepping on it in the northeast corner near the north gate of the community. There were also traces of stepping on it outside the wall. A series of footprints.”

"Captain Luo is reporting in the conference room and asked me to bring something to you."

"Okay, leave it here."

All work on Lu Chuan's side has just been completed.

Blood stain analysis has basically restored the entire scene.

Originally waiting for the results of trace evidence identification and analysis to be delivered, Lu Chuan could report the entire current investigation situation to Li Donglin.

Now there happened to be an extra set of footprints, and Lu Chuan could compare and verify it with the half-naked footprint found on the sink at the crime scene.

Moreover, this is a string of footprints, not a single footprint identification and analysis. The clues and information will be more comprehensive. In the conference room, Luo Qiang continued to report.

"I just agree with Wang Song's opinion. The murderer killed four people in a short period of time. There must be a reason why he had to do this."

"Although we have not found any connection between the four murdered people, the murderer's methods of committing crimes are sophisticated and the process is cautious. It must have been carefully planned."

"The other party shouldn't be killing without purpose. There must be some connection between him and the victim."

"But the question is why did the opponent choose to kill four people in a short period of time?"

"I wonder if we can make a bold guess, that is, the other party has a reason to do this. For example, he himself is terminally ill. If he doesn't take action, he will have no chance."

"Another example is whether he may be a released prisoner who is eager to take revenge."

"So my suggestion is to start the investigation from these two aspects, especially the prisoners who have been released recently. Has the BZ City Criminal Investigation Detachment conducted a check?"

Everyone looked at Gao Xiang, the leader of the BZ City Criminal Investigation Detachment: "There is no such thing."

This was not thought of here, so no investigation was conducted on those released from prison.

However, after listening to Luo Qiang's analysis, Gao Xiang and others also believed that this was indeed a direction.

They have also encountered many cases where the suspects were ex-convicts who had just been released from prison.

After sitting in prison, these people believed that they were unjustly sentenced for a reason, so they vented their resentment from being in prison for many years on their imaginary enemies.

So after I came out, I couldn't wait to take revenge, and I also thought clearly before I was caught. Because it was a murder case, it was just a matter of taking a bullet.

Li Donglin pondered for a moment: "In this way, the BZ City Criminal Investigation Detachment will set up a special team to conduct a thorough investigation of the prisoners who have been released from prison in the past year, including those who have come out of the detention center."

"Focus on checking whether these personnel are related to the victim."

"Okay, I'll make arrangements right now."

Because there were relatively few clues and information in the current meeting, the meeting ended very briefly.

At seven o'clock in the morning, the sun has risen.

There was not much rest all night, and the criminal police team members immediately set out to start today's work.

The forensic autopsy work in the autopsy room has basically been completed.

The cause and time of death of the deceased were not much different from what Lu Chuan judged at the scene.

Only the wounds on the deceased's abdomen and lower back were emphatically analyzed.

After the murderer slit the deceased's aorta, he stabbed the victim twice in a row and then stabbed him again in the belly for unknown reasons.

During the whole process, the murderer did not put up a strong resistance.

As for the nails on his head, it was confirmed that they were driven in after death.

The reason why Li Donglin decided to investigate a person who had been released from prison within the past year was because this range was based on the rules he summarized from most of the cases he had experienced.

Generally speaking, the time interval between three months and seven months for prisoners who have been released from prison to retaliate and commit crimes.

Rarely more than a year old.

For ex-offenders without family support, the first year or the first three months after release is the most difficult.

Because they face long-term and social disconnection resulting in sequelae.

In addition, it is difficult to find a job, which will cause them great psychological pressure.

Therefore, prisoners who have been released from prison often commit crimes, and the probability is mostly concentrated in the first three months after release.

Li Donglin relaxed this time to one year, which is already relatively long. (End of chapter)