Chapter 676 Lu Chuan’s identification analysis results
Although there are very few clues in the case, the crime team has sorted out the context after three days of investigation.
First of all, Wang Song's investigation has eliminated the suspicion of an expedition team that entered the mountains at the same time as the missing and murdered team.
Of course, this is only the current investigation result.
If new clues are discovered in the later stage, suspicion may be directed at these teams again.
In addition, Song Mingguang's investigation has basically figured out the basic personal circumstances of the five victims.
Strictly speaking, it is the personal situation of the three victims and two missing persons.
The four college students have relatively simple family backgrounds and school backgrounds.
There is basically no possibility of killing people due to personal background reasons.
Moreover, even if this is possible, the possibility of the other party choosing to kill people in Beiliang Mountain is not high.
The environment inside Beiliang Mountain is complex and the terrain is dangerous.
People outside have no idea of the environment inside.
Combined with various situations discovered so far.
The possibility of local people committing crimes is very high.
Although the general scope has been locked, case investigation is not that simple.
There are many natural villages around Beiliang Mountain.
There are many people who rely on the mountains and eat the mountains.
It is impossible to further identify the criminal suspect only through the inferences of the investigators of the serious crime team.
Li Donglin turned his attention to Lu Chuan.
At this time, what is needed most is the discovery from Lu Chuan.
Evidence is always the most important basis for solving a case.
In the past three days, Lu Chuan was so busy that he only slept for four or five hours.
The missing and murdered persons left a large number of items at the crime scene.
Lu Chuan analyzed these items one by one in great detail.
I did get a lot of clues.
"First of all, let's report on the identification of the skeletons."
Lu Chuan has re-identified and analyzed the three skeletons that have been discovered in the past three days.
“Let’s talk about the time of death first.”
“Based on the reported information, the original plan of the expedition team was to enter the mountain on July 2 and leave the mountain on July 9.”
< br>“Analysis of the distance from where the bones were found to the time outside into the mountain indicates that the expedition team should have arrived near the crime scene on July 4.”
"The time of death of the victim, based on the degree of skeletonization, should be about half a year."
"The two times are consistent."
The main purpose of Lu Chuan's analysis of this point It is direct evidence to confirm the time of the victim.
The expedition team entered the mountain on July 2nd and planned to leave the mountain on July 9th.
This time is only the time to report to Beiliangshan Police Station.
It is also the theoretical time frame within which the team’s victims disappeared.
But in fact, when the victim was killed cannot be confirmed through reasoning, but only through evidence.
The degree of skeletalization of the corpse is direct evidence.
The environment in Beiliang Mountain is relatively hot and humid. Even though it is winter, there is no snow inside.
It is a very suitable environment for the skeletalization of corpses after death.
"The other is the judgment of the cause of death."
"The three male corpses that have been found basically have fracture injuries."
"It can be judged that the deceased should have gone through severe trauma before being killed. Fight."
"One of the skeletons," Lu Chuan turned on the projector and numbered the three skeletons, "is the skeleton we saw three days ago. The arm was exposed and the hyoid bone was broken. Broken ribs."
"Death can be judged as suffocation."
"Skeleton No. 2 has a broken leg bone." The photo on the projector showed the cracks in the broken bones.
“This fracture surface has traces of fine comminuted fractures, consistent with the characteristics of tibia fractures caused by blunt force beating.”
“Through the traces of leg bone fractures , the size and shape can basically be judged to be fractures caused by the impact of a cylindrical object such as a trekking pole or a steel bar. "
"In addition, look at the lower end of the spine of Skeleton No. 2. There are scratches from a sharp weapon. .”
"It should be that the murderer used a knife to stab the victim's lower back from behind, causing scratches."
"And here..."
Skeleton No. 2 is displayed on the projector skull.
“There were broken horizontal lines on the occipital bone, and there were longitudinal cross cracks.”
“The deceased’s head had been severely impacted by foreign objects before and after his life.”
"And the mark of this scar, compared with the fracture mark caused by the leg bone just now, the blunt force impact area that caused this scar is larger."
"In other words, the leg fracture of corpse No. 2 It's not the same thing as the object that hit the skull."
"The object that caused the skull fracture was more like a hammer."
"The fatal injury of deceased No. 2 was probably on the skull. Head. "
Lu Chuan introduced it in great detail, carefully analyzing and identifying every scar and fracture of the deceased.
And the results obtained can be understood by everyone present.
The person who attacked Skeleton No. 2 may have been three people.
One used something similar to a trekking pole, causing victim No. 2’s leg bone to fracture.
There was also a person holding a sharp weapon who caused injuries to the deceased's lower back.
The other one is to use a hammer or something like that to hammer the deceased on the brain.
And this blow was the fatal injury.
“So, initially, it seems that the murderer who caused the injuries on Skeleton No. 2 is likely to be three people.”
“We are looking at the condition of Skeleton No. 3.”
"Compared to Skeleton No. 1 and Skeleton No. 2, Skeleton No. 3 has more scars."
On the projector, traces of all the scars on Skeleton No. 3 appear.
"Skeleton No. 3's legs and arms were fractured. After comparison of the fracture marks, it was determined that it was the weapon that caused the leg bones of deceased No. 2 to be fractured."
"This has also been verified. The judgment we just made is that the murderer is definitely not the same person."
"There are also fractures on the chest ribs of skeleton No. 3. The fracture area is large and oval."
"Comparison 2. The fracture marks on Skeleton No. 2 can be judged to have been caused by the weapon that caused the occipital fracture of Skeleton No. 2, that is, something like a hammer or hammer."
"And here."
Lu Chuan pointed to an enlarged photo of the leg bone.
“The upper part of the left leg bone, which is the thigh part.”
“Look at these small white spot-like marks.”
Even though the photo is very large Large, these white spot-like traces are not particularly clear.
“What is going on?”
"The tip of the knife!"
Lu Chuan picked up a fruit knife on the table and pointed to the tip to explain to everyone.
“Before the death of Victim No. 3, someone stabbed his thigh with a sharp instrument, and the tip of the knife was pressed against the bone.”
“And more than once.”
“Also Here.”
Everyone observed carefully and saw a thin white trace, continuous, about ten centimeters long.
“A white mark about 10 centimeters long is the scratch left by the tip of the knife on the bone.”
“That is to say, the murderer stabbed Victim No. 3 multiple times with a sharp knife. After the thigh, another ten centimeters were opened along the muscles.”
(End of this chapter)