Chapter 436: Sorry, It's Science!
“4:30!”
The police officers at the scene had a moving expression, and as long as the criminal investigators who had been on the front line knew the importance of time in homicide cases.
Now, when the time shown by the camera physical evidence coincides with the time Chen Jun said, the shock brought to the police is incomparable.
Corpse Whisperer, that seems a bit apt.
At least no one despises the young man's words anymore.
Chen Jun got up slowly, looked at everyone, and said in a calm voice: "The time of death of the deceased's real boss has been determined, and now is to determine the murderer." The police generally like to investigate various evidence channels, victims' networks, and determine the murderer's machine to gradually screen the suspect, while the forensic doctor has to do is to conduct on-site medical investigation of the corpse, medical follow-up and evidence collection, and determine the murderer's identity information. ”
All the officers listened attentively and did not wander.
"First of all, you have all seen that there are two wounds on the victim's body, both of which were cut with a sharp sword. Dr. Shimada, please lift the white cloth of the corpse again. ”
Chen Jun motioned to Mitsuo Shimada next to the corpse, waited for him to uncover the white cloth, and said with his finger: "The victim has only two wounds on his body, one is an incision wound on the back, which will cause bleeding but not fatal, and the second wound is the real cause of his death, the external carotid artery and external jugular vein in the neck are severed, which directly causes the blood flowing from the victim's neck incision wound, which is inhaled into the severed trachea into the bronchi and lungs, resulting in mechanical asphyxia and death from air embolism." ”
"The first incision is cut at the trapezius muscle on the victim's back to the position of the circle muscle, 14cm long, the depth is 3.5, and the oblique shape is pulled down from deep to shallow, this is not a fatal position, if the victim is hit by this sword, the first reaction is a strong sharp pain in the brain, and he subconsciously covers the wound with his backhand, and the severe pain slows down his mobility."
"You can imagine in your mind the scene of the victim's death before he died.
At about 4:30 in the exhibition hall, the boss of Manaka was called to the exhibition hall by the murderer, and in the case of his doubts and relaxation, suddenly the murderer came out of his back, first slashed his shoulder with a long sword, Manaka was in pain, and dodged and retreated, in this life and death crisis, he quickly thought about the way to survive, and suddenly the murderer spoke, he noticed the identity of the murderer, so he tore off the label on the wall, and then picked up the pen that appeared on the table, and quickly wrote down the name of the murderer.
The killer then turned around and rushed over and forced Manaka into the wall, controlling his body with one hand and stabbing him in the neck with the other sword. ”
The sound seemed to be cold, and Xiaolan and many staff members of the art museum shrank their necks, and they were shocked to feel cold.
The police officers at the scene were all dumbfounded, and some of the officers of the Physical Evidence Bureau who had seen the surveillance video were incredulous, and nodded to Officer Twilight: "What he said is exactly the same as in the video, and the victim was killed in this way." ”
"That's what you police think." Chen Jun looked over.
"Isn't it?"
Officer Twilight heard the meaning of the words and was surprised, "According to the note found in the victim Manaka's hand, it is the name of the museum staff member Wata, and we also found bloodstained armor in his safe, how can we explain this?" ”
At present, the biggest suspect Watada shouted, "I didn't do it, it wasn't me." ”
Officer Twilight explained: "The fact is as you just said, Wata's boss came out in advance, and then ambushed him in the exhibition hall, killing him while he was unprepared, he deliberately put on armor because he was photographed by the monitor, but unfortunately the monitor photographed a note written by the boss of Manaka, and after the surveillance video was found, the murderer did not find this note at all, nor did he touch it, I consulted Wata's transcript, and he did not have an alibi, who else could he be?" ”
"What about the motive for Kuwata's killing?"
"If he knew there were cameras in the showroom, why didn't he find a place where there were no cameras? And why commit murder where there should be a huge risk? ”
Officer Twilight frowned.
Chen Jun smiled: "I don't care about any of the above, I only believe the truth that the corpse told me, to correct a little, the association just now only describes the picture you see, and the truth is far more than that."
Let's analyze the fatal wound on the neck of the deceased, which hides a lot of information about the murderer. ”
The whole audience watched the young man talk loudly, walked to the bloodstain on the wall, and said: "This incision wound on the neck, the width is 5cm, which is in line with the width of the sword blade of the murder weapon, and the depth of the wound is 7cm, which penetrates the throat of the deceased, and the wound is obliquely stabbed, pierced from top to bottom, and has an inclination angle of 35-55 degrees according to the force analysis of the wound. ”
"What do you mean?" Officer Twilight asked.
Chen Jun asked rhetorically: "How long is the murder weapon in the real murder weapon that killed the dead?" ”
Officer Twilight replied, "It's 90 cm!"
"How tall is the deceased?"
The crowd didn't know why, but Mitsuo Shimada replied, "According to the measurement, it is 163cm, which is short. ”
"Hmm." Chen Jun responded, "According to the bruise on the victim's chin, it can be seen that he was controlled by the murderer by choking his jaw, pressing against the wall, and then stabbing his neck with a long sword to kill."
At present, the width of the sword is 5cm, the length of the sword is 90cm, and the height of the deceased is 163cm. And if these conditions are to be formed, it is a top-down rather than bottom-up oblique stab, and the precise stab of the sword into the neck is not a small challenge for height. ”
Chen Jun said softly: "I am 182cm tall, I can do this, and the people in the same art museum can do this, the height should be similar to mine, or at least not less than 178cm."
Moment.
The eyes of the police officers swept over all the staff of the art museum, and unconsciously according to Chen Jun's speculation, they immediately ruled out the suspect Wata, who seemed to be only a little bit tall in his early 170s.
The gaze flew away, and the pupils of all the police officers froze, and they locked on one person at once.
Chen Jun continued: "There is another anomaly in the neck of the deceased, that is, the width of the wound in and out of the front of the neck and the back of the neck are not consistent, and the latter is 0.8cm wider than the former. ”
Officer Twilight asked, "What does that mean?" ”
Chen Jun explained, "The neck is one of the softer parts of the human body, except for the spine, it is mostly composed of epidermal fat, muscles, laryngeal canals and other connective tissues.
However, if the back of the neck is now 0.8 cm wider than the front of the neck, it means that the sword stagnates in the process of piercing the neck, and this phenomenon is caused by a high acceleration after charging. ”
Officer Twilight frowned, "Stagnate? Charging? Acceleration? ”
Chen Jun looked at the director of the art museum and said flatly: "In another way, it is not so much that he is accumulating, but that his strength is not enough to penetrate the neck of the deceased!" ”
Officer Twilight and many other police officers suddenly realized.
Conan sighed in his heart, and had to say that he couldn't find a single mistake in the audience, or he couldn't find a loophole with his knowledge, forensic science is a very powerful discipline, and he shouted from the bottom of his heart, "Big brother, your reasoning is very wonderful." ”
"It's not detective reasoning, it's science!" Chen Jun smiled slightly, and his eyes fell on the slender and tall Curator Ochiai:
"In addition to what I said above, you have at least two obvious loopholes!"