Chapter 91 Key clues, 0.618 golden ratio!
Su Ming's speculation.
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It made Xu Changsheng and Lin Tian a little confused, and even more surprised.
Because they didn't know.
Where on earth could Su Ming conclude that the murderer of the dismemberment case at Magic City University used the hammer grip method, which was easy to exert force.
It also completely ruled out the two common doctor's knife holding methods, holding a bow and holding a pen.
Of course, the most important thing is...
The hammer grip method is usually used for knocking and chopping, such large-scale and undetailed things.
But now.
From this recorded video.
The murderer of this dismemberment case should be quite meticulous and have outstanding knife skills.
Otherwise.
How could it be possible that when dismembering the victim, even the size and shape of the body parts could be almost the same.
But the hammer grip method basically cannot practice knife skills.
After all.
Has anyone ever seen someone practice fine knife skills with the rough hand gesture of holding a hammer?
......
It seems that he can see the confusion of Lin Tian and Xu Changsheng.
Su Ming did not hesitate at all, and immediately picked up the remote control on the table and chose to replay the video of the murderer dismembering the body.
The slightly scary bloody hand scene appeared again, when the murderer showed his bloody palm and was ready to show the victim's head from all angles.
Su Ming immediately pressed the pause button and greatly enlarged the blood on the murderer's palm.
Then.
Su Ming strode directly to the screen, pointed at the blood on the top of the murderer's left palm with different depths, and squinted his eyes and inferred.
"Director Lin, Brother Sheng."
"First of all, we have previously determined through the body parts and the location of the skull fracture that the murderer is a left-handed person."
"So when picking up heavy objects or wielding tools in daily life, the murderer must have habitually used his left hand."
"In addition."
"From the protruding finger joints of the murderer and the many healed and recently inflicted cuts on the side, it shows that he has been working or training for a long time."
"Now."
"Look carefully at the bloodstains on the top of the murderer's left palm. Can you see the extremely hidden and varying degrees of fracture?"
"This is obviously different from the uniform bloodstains in the center."
Hearing this.
Xu Changsheng frowned immediately, thought very seriously for a few seconds, and shook his head with a little confusion.
"Xiao Ming, what can this blood stain of varying depths indicate?"
"No matter from which angle you look at it, this is a very accidental thing, and I feel that it cannot be used as a clue or source of evidence."
"It's like the murderer pressed his hand in a pool of blood, which would cause the depth of the blood stain on his palm to vary..."
Before Xu Changsheng finished speaking.
Lin Tian directly knocked on the table, interrupting his subsequent words, and explained uncertainly.
"No, Asheng."
"Look at the blood on the murderer's palm, which means he should have pressed his whole hand into the pool of blood."
"But there are bloodstains of varying depths on the palm, and Xiaoming just specifically proposed the hammer grip method, which is more convenient for exerting force."
"Think about it."
"Does the hammer grip method require the entire palm to be tightly attached to the wooden handle of the tool, especially the top of the palm, which is needed to fix it to prevent it from slipping out of the hand."
"That's why."
"When doing high-intensity training and wielding tools, the top of the palm will definitely be repeatedly worn and healed, and finally form prominent calluses."
"For doctors or forensic doctors, there is no need to use the hammer grip to facilitate force, let alone calluses on the palms."
"However."
"From the murderer's carefulness in cutting the body and his familiar techniques."
"This murderer is probably..."
"In daily work or practice, not only is it necessary to use the hammer grip to facilitate force, but also to cut and decompose very finely."
"If it meets these two points, the relevant professions I can think of at present are..."
"Butchers, chefs, duck slicers, tuna cutters, etc., but something is not right."
Speaking of this.
Lin Tian suddenly overturned his previous guess, frowned and sniffed the tobacco smell on his index finger, and said slowly.
"According to the content of the post on the dark web."
"The details we deduced yesterday show that the murderer should have a high social status, and his fame and money should also be among the best."
"And judging from the state in the recorded video, the murderer's hands should have been specially maintained in various ways, but for professions like chefs and butchers, there is no need to maintain their hands at all."
"The most important thing is..."
"There is no particularly obvious status gap between these professions and college students, and it cannot be as described in that post."
"It is difficult for us, the police and the public, to associate it with this case."
At the same time.
Xu Changsheng also figured out the depth of the blood on the murderer's palm, and then followed Lin Tian's words.
"Master, it's more than that."
"If it is a common profession like chefs and butchers, there should be no need to hide their left-handed characteristics."
"After all."
"There are quite a few people working in these professions. A left-handed person alone cannot lock anything, let alone hide."
"And I remember there was a sentence like this in that post."
"To avoid suspicion to the greatest extent, the best way is to let the prey find it by itself and cover up all the whereabouts by yourself."
"I think it is difficult for a profession like butcher to attract a college student, not to mention that you have to cover up your actions by yourself."
"So the murderer's profession should be very special and have a certain appeal to college students."
At this moment.
The whole conference room fell silent.
Su Ming and the other two began to think seriously about what kind of profession can meet so many requirements.
Eat with your hands.
Fingers often have cuts.
Need to hold the tool tightly for a long time, hammer or cut hard, resulting in calluses on the top of the palm.
Also good at fine segmentation work, able to cut the body pieces into almost the same size and shape.
The overall number of practitioners is small, the economic conditions are excellent, and there is a certain appeal or value to college students.
The social status gap between this and college students is huge, and it is difficult to associate this profession with others under normal circumstances.
Judging from the cutting of the victim's body parts, he should also have a good understanding of human joint tissues.
......
The three people kept thinking.
The recorded video on the screen was still playing. Su Ming leaned comfortably on the chair, tapping the back of his left hand with his right index finger, squinting his eyes and emptying himself.
His mind was constantly screening what profession could meet so many requirements.
And at this moment.
The only words of the murderer in the dismemberment recording video slowly entered Su Ming's empty mind.
"It is even more anxious and nostalgic than the golden cutting rate of 0.618."
"This is truly perfect... a truly perfect work!"
