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

After hearing what Lu Chuan said about the suspect's height characteristics, a person suddenly popped up in Song Mingguang's mind.

If we follow the forklift clue, the biggest suspects are Li Baowei and Zhang Bin.

Both of them pursued Wang Jingya, and their methods were quite extreme. They made a scene in Wang Jingya's company and even had a fight.

Especially Li Baowei, he and Wang Jingya have known each other for a long time, since high school, and he has been pursuing Wang Jingya for all these years.

Moreover, Song Mingguang has almost completed the investigation on Li Baowei's information, and the other party's height is exactly 1 meters.

"How did you determine that?"

Song Mingguang asked quickly.

“Some spatial locations of the crime scene.”

Lu Chuan went on to explain: "When I went to the crime scene this afternoon, I conducted a very detailed investigation of the situation there and found some clues."

"The suspect was there. When he was cooking Wang Jingya's body, he was sitting on a small stool in front of the stove. There was firewood next to his hand."

Generally speaking, if a person sits on a stool and burns firewood, it should be the most comfortable state for him to move. So based on this, Lu Chuan roughly judged the range of the opponent's arm length.

"If the firewood is too close to the opponent, it will be difficult to separate the firewood and break it. If it is too far away, the opponent will have to stand up to reach it, so it is not suitable either."

Lu Chuan gestured and said, "From a survey perspective, the length of an average person's arms when outstretched is roughly in a 1:1 ratio to their height."

"Of course, this requires calculating the width of the chest cavity. The width of an average person's chest cavity is roughly the same as the length of their forearm."

"Based on the data measured at the scene, I basically determined that the murderer's height was between 1 and 6 meters."

In the process of investigating so many cases, the accuracy of Lu Chuan's judgment on the height of criminal suspects is generally within two or three centimeters, and the difference of 10 centimeters is actually very rare.

The main reason for the large gap this time is that the calculation data is not standard.

When the suspect reached out to grab the firewood, his arm might have been stretched straighter or slightly bent.

There is no particularly clear standard, so the error has a large range.

However, even though the error range is relatively large, the calculation result obtained by bedsores shows that the suspect is relatively short.

You should know that as a model, Wang Jingya's height is only 1 meters.

The suspect's height is between 1 and 6 meters.

"Is there any other information?"

"fingerprint!"

Song Mingguang looked at Lu Chuan in surprise: "Fuck! Did you find fingerprints at the scene?"

"Didn't the Tianzhou City Criminal Investigation Team say they searched the scene several times? How could they have missed a fingerprint?"

If this is true, then the Tianzhou City Criminal Investigation Detachment is not just embarrassed.

No fingerprints were collected at the crime scene, which can be regarded as dereliction of duty.

It was a major accident, not a mistake.

"It has nothing to do with them. The fingerprint collection is quite special."

Lu Chuan could understand: "The suspect handled the crime scene very cleanly. There were basically no footprints or fingerprints, but the other party overlooked one thing."

"When he was cooking the body, he had to break off branches and firewood and put them into the stove. In the process, he would definitely come into contact with the firewood."

"Although most of the firewood he had touched had been burned, it was all mixed together and needed to be separated."

"During this process, the suspect may have come into contact with other firewood, but that firewood was not burned." When Lu Chuan collected fingerprint information on the spot, he was just trying it out.

On the one hand, removing fingerprints from firewood is extremely difficult.

On the other hand, it is possible that the suspect actually burned all the firewood he came into contact with.

Even if Lu Chuan found the incomplete fingerprint now, he couldn't be sure that this fingerprint did not belong to the suspect.

Because the firewood was taken from the firewood pile in the fire department, these firewoods were originally prepared by local people.

"This fingerprint is very damaged. I searched for it all night last night, but was unable to match it successfully."

This morning, Lu Chuan asked the Tianzhou City Administrative Detachment to go to the crime scene and collect fingerprints from several family members of the homeowner.

After taking it back, he conducted a manual comparison. If it could be ruled out, then this fingerprint was most likely that of the suspect.

"If there are any suspicious persons on your side, please collect the fingerprints and let me try first."

"it is good!"

Song Mingguang felt much more confident.

With the height feature, we can basically lock down the scope of the suspects. Now Li Baowei's suspicion on Song Mingguang's side has greatly increased.

In addition, if the other party's fingerprints can be collected, Lu Chuan can compare them. If they really match, then the case will be solved.

After breakfast, both of them left and went about their own business.

Song Mingguang immediately called his group over and asked about Li Baowei's situation.

"Captain Song, this guy can't do it. He has an alibi."

"absent?"

Song Mingguang just thought that there had been a breakthrough in the case and he could catch the suspect without saying anything, but his men told him that Li Baowei had an alibi again.

"Yes, on the night of the incident, around 10 o'clock, Li Baowei was playing mahjong with a few co-workers until the early morning. After they drank and fell asleep, they stayed together."

"He simply didn't have time to commit the crime."

In this case……

Wang Jingya disappeared at 9:08 p.m. on the day of the incident, and her body was found the next afternoon.

According to the forensic judgment, Wang Jingya should have died in the early morning of that day.

"sure?"

The subordinate nodded: "Sure, although we haven't found him personally to verify the situation, we have sent someone to find out from the side."

"On the night Wang Ya disappeared, seven of them were playing poker. They can all testify against each other, so there shouldn't be any problem."

In this case……

The biggest clue Song Mingguang found was Li Baowei and Zhang Bin.

如果陆川这边发现的线索没有问题，那张斌的嫌疑就可以排除了这个人的身高在1米85，根本不是陆川所说的1米61米7之间。

Although Li Baowei's height is within this range, the other party has a clear alibi.

Did I go in the wrong direction? (End of this chapter)