Chapter 342 An Unexpected Clue (More to Come)
The picture was played again and Chen Yan observed carefully.
"It turns out this is here..."
The screen is paused for the moment when the fox jumps away.
"The tail...the color of the tail is wrong!"
Although infrared cameras cannot present color images at night, it does not mean that all images are exactly the same gray.
Different colors appear in different shades of gray in infrared cameras at night.
For example, white appears very light gray.
It's easy to identify.
The black is very deep and easy to distinguish.
The fox in the video has the same color all over its body, a very light gray.
Chen Yan can basically determine that this is a white fox.
However, when the fox jumped away, its tail was raised, but there was a deep gray color, which made everything look incongruous.
Why does this white fox have a black spot on its tail?
You know, on animal hair, hair growth is regular.
Spots are a characteristic found only on certain species.
For example, a black and white spotted dog, a black and white spotted cat, or a black and white spotted cow.
However, these species are basically deliberately hybridized through human intervention.
Have you ever seen animals with black and white spots in nature?
Apart from pandas, there seems to be nothing else.
Therefore, why does this fox have dark spots on its tail that are extremely irregular in shape?
It was as if a mark had been brushed on it.
For example, in a flock of sheep, in order to distinguish which sheep belong to which family, the owner will paint the tail or ears of the sheep.
This fox...
Is this also true?
There is also sound.
Gululu...
There is a kind of bird living near Mao'er Mountain, and its cry is this kind of purring sound.
However, in the video from the previous week, the bird calls Chen Yan heard were all "Gulu, Lu, Lu, Lu..."
Instead of Gululu.
In the video on the night of the 29th, the sound of birds that woke up the fox was different from the previous sounds!
leave the office.
Chen Yan went straight to the conference room.
Wang Min and Zhang Kai are discussing the case.
The others haven't come back yet, and they are all investigating the work arranged by Chen Yan last night.
Seeing the joy on Chen Yan's face, Wang Min perked up: "How's it going? Do you have a clue?"
Um.
Chen Yan nodded affirmatively, connected the computer video, and turned on the projector: "There are some problems with the video on the night of the crime."
"Brother Wang, look at this fox's tail..."
"Also, the bird's cry that woke up the fox..."
In fact, there seems to be no problem watching the video of the fox alone, or listening to the bird call alone.
However, when Chen Yan compared the normal white fox infrared video with the video, and compared the normal bird calls with the sound in the video, the differences became obvious.
Without waiting for Chen Yan to explain, Wang Min personally played the video three times.
Finding problems is Chen Yan's strength, but when it comes to reasoning, Wang Min is no worse than Chen Yan.
Among the cases he has handled over the years, Wang Min has seen more than one case of using animals to kill people.
There is more than one investigation.
Therefore, these details discovered by Chen Yan confirmed a guess that Wang Min had always had in his mind.
In other words, at least there is a certain basis for reasoning.
After stopping the playback, Wang Min handed Chen Yan and Zhang Kai each a cigarette, and lit one himself: "Do you suspect... that someone deliberately raised animals in captivity to kill people?"
"yes!"
Taking the cigarette, Chen Yan nodded affirmatively: "The fox in the video is fat and has a light gait when passing the camera. It is not as cautious as ordinary wild animal hunting."
Chen Yan was not surprised that Wang Min revealed his thoughts.
If Wang Min didn't think of this after watching the comparison video, Chen Yan felt strange.
There is a big difference between captive animals and wild animals.
Chen Yan had seen a video of a fox foraging for food on a short video.
Be highly focused and careful.
It's not like the fox in the video, it's as leisurely as taking a walk.
And the fox in the video is just like Chen Yan described, with a plump body.
For animals living in the wild, even if the food is particularly abundant, the animals themselves still need to catch it.
There will be a lot of exercise.
Therefore, there are very few particularly fat animals in the wild.
Especially now, in the Black Market Wilderness Forest in May, the vegetation is not yet lush, and the fruits produced by the trees were all consumed by small animals as early as last autumn and winter.
This is the time of year when food is least abundant.
But how did this fox get so fat?
Then there is the chirping of a bird.
It doesn't sound like much at first, but compared with real bird song, the sound is a bit thick and the length is wrong.
Obviously, this should be the owner of the fox calling his pet.
"I suggest that all animal farms on the black market be investigated."
"We found traces of many different types of animals biting and gnawing on the corpses at the crime scene."
"It created the appearance that the victim was attacked to death by an animal."
"Perhaps, the murderer behind this was intentional and deliberately attracted our attention."
"Thus ignoring the real mastermind hiding behind the scenes."
"I agree!"
Wang Min agreed very much with Chen Yan's judgment.
Turning around, Wang Min looked at Zhang Kai: "Zhang Kai, you are responsible for this matter."
"Investigations must be conducted in secret and do not alert others."
"yes!"
The next step is to conduct detailed investigation and evidence collection.
Neither the investigation of the relationship between the six people nor the investigation of smuggling ended so quickly.
At present, all clues at the scene have been excavated.
All that's left is waiting.
The next day, that is, early morning on May 3rd.
Zhang Jianguo, who was in charge of the autopsy, brought unexpected news.
"Team Leader Wang, we found some special substance residues on the corpse."
Anatomy room.
"Last night, we detected an alkaline substance on some corpse tissues embedded in tree trunks."
Zhang Jianguo began to introduce the situation discovered last night.
When Chen Yan and others brought back corpse tissues from 36 crime scenes, they also brought back corresponding tree trunk tissues.
For example, in the scene numbered 37, the severed fingernails were inserted into the trunk of the tree. How did he do this?
The trace identification team has been conducting tests, but unfortunately, no useful information has been detected on the trunk.
"The substance softens the trees but leaves no trace after it melts."
The clerk from the trace identification team also nodded: "This substance is an alkaline veneer softener."
"Colorless and odorless, it is sprayed on the bark and softens the bark over a period of time."
"It will then evaporate in the air."
"So, we didn't detect it on the trunk."
Zhang Jianguo and others also found it in some wounds when they were doing autopsy tissue examination.
It should be due to the blockage of blood coagulation, so it is not completely evaporated.
"Where can I buy something like this?"
The insider responsible for trace identification shook his head: "This softener can only soften the bark, so it is not very practical."
"There are basically no sales in the country."
If it is not available in China, it must be available abroad.
After leaving the anatomy room, Wang Min made a phone call.
"Since this matter is related to the Big Bear Country, it is very likely that the murderer purchased this softener from the Big Bear Country."
"I'll let the people over there check it out."
Chen Yan nodded and followed Wang Min to the trace identification room.
"Are there any results from the shoe prints collected on site?"
The additional update is under review and has not been sent out yet.