"The knot of the rope is right behind the head, and another rope is tied to the knot of the first rope."
Masami had already removed the contact lens from the deceased's eye, looked at Tang Ze and asked, "Are you concerned about the rope?"
"Of course, this rope alone is enough to strangle someone to death. I can't understand why another one is tied at the knot." Tang Ze nodded.
"Perhaps the rope had other uses, but the murderer just picked it up when he committed the crime."
After Ma Chengshi guessed, he immediately said, "Get the rope and take a look at the marks."
"That's a possibility."
Tang Ze removed the rope and frowned as he looked at the marks: "This mark is diagonal."
"suicide?"
Looking at the bruises that stretched diagonally upward, Masamichi's face was filled with confusion. "Generally speaking, if it was a homicide, that is, death by strangulation, the strangulation marks should be parallel to the head..."
“That’s where the weirdness comes in.”
Tang Ze pointed to the right side of the deceased's neck and said: "The upward strangulation marks are the characteristics of suicide, but the 'Yoshikawa lines' also appeared on the neck.
When being strangled, the victim will resist pulling the rope because of the excessive pain, which will cause scratches.
This is more evidence of homicide.”
"That's contradictory." Masashi looked at Tang Ze and said, "Which one do you think has a higher probability?"
"Judging from the condition of the body when it was discovered, I am more inclined to believe it was homicide."
Tang Ze said, "After all, no one can commit suicide, then pack themselves in a suitcase and load them onto a refrigerated truck."
"That's true," Masashi agreed. "Even if it wasn't murder, the person who dumped the body still needs to be found."
"That's all. Thank you for your hard work."
Tang Ze took off his gloves and said, "That's all the autopsy can reveal. The rest depends on whether the laboratory can find anything.
Let's have a quick meal together after get off work?"
"No, no, Junhui has prepared dinner at home. Let's do it next time." Masashi smiled and waved his hand when he heard that.
"Next time then."
Tang Ze did not refuse after hearing this. After saying goodbye to Masamichi, he ordered coffee for the inspectors who were working overtime and then returned home.
After dinner, Tang Ze fell into deep thought as he looked at the photos of the rope he had taken.
This rope really made him concerned.
If the rope that is strangled around the neck is considered rope A, then the rope tied to rope A is considered rope B.
The knot tying method of A rope is called a mouth knot. This knot is very strong and is a special knot often used by rock climbers, rescue teams or camping enthusiasts.
As for the knot of rope B, it is a very common dead knot.
Looking at the two ropes in the photo, Tang Ze wondered why there were two of them.
However, there is currently no information from the forensic team, and Tang Ze has no way to get an answer. He can only list various situations and wait for tomorrow to come.
No words were spoken that night.
The next morning, Tang Ze, who was still thinking about the case, ate the breakfast made by Ayako early and went to the scientific research institute.
The report on physical evidence related to the case was also placed on Tang Ze's desk.
"Senior, I've already looked through the information and have made some discoveries. I'll send a copy to the Metropolitan Police Department and tell them about my findings."
Nanatsuki Koshimizu, who arrived earlier than Karasawa, saw Karasawa coming, greeted him, and hurried out.
Tang Ze didn't care what she found. He sat down, picked up the information and started reading.
The first is the rope.
The inspection report stated that the two ropes were made of the same material and were circulating commodities in hardware stores.
First is Rope A, which is the rope that is in direct contact with the deceased. The cross-section at one end is the same as the cross-section at both ends of Rope B, which means that they were separated by the same tool.
Judging from the direction of fiber wear, the tool should be pliers.
The end of rope A with a different cross section is cut with a knife.
Although this is only a slight difference, after seeing this difference, Tang Ze tasted some unusual meaning.
Was it left behind when the deceased was discovered after hanging himself and the other party cut the long rope?
But the tools are different, and why?
Suppressing all the thoughts in his mind, Tang Ze continued to look down.
Regarding fingerprints, no fingerprints were found among the remains at the scene.
There were no fingerprints of the victim even on the rope.
This was obviously erased.
In addition, the skin DNA inside the fingernails was found to be from the victim himself, and it was confirmed that the scar on the neck was the Yoshikawa Line.
The evidence only goes so far, and then contradictions appear again.
But Tang Ze still prefers homicide because the body was found in a refrigerated truck.
In addition, nitrobenzaldehyde, acetylene, sodium hydroxide and barium hydroxide were detected on the pulley of the deceased's suitcase.
According to the analysis of the identification personnel, these ingredients should be synthetic blue dye, that is, indigo dye.
This thing is commonly seen in factories and it is impossible to find these things in normal environments.
In other words, it is very likely that there was indigo dye at the place where the deceased died, which is why it stained the axles of the suitcase.
At the same time, the delivery route of the refrigerated truck is fixed. If the prisoners want to put the suitcase containing the corpse on it, they can only do so during the delivery.
This won't take too long.
That is to say, when time is limited, there is a high probability that this factory is on the delivery route.
Thinking of this, Tang Ze understood why Nanatsuki Koshimizu hurried to the Metropolitan Police Department.
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