Chapter 342: A Special Murder Weapon
It's hard for everyone to believe that what this has to do with the corpse in front of them, as a forensic doctor, as long as you have knowledge within your own professional scope, isn't it enough?
Among these people, only Shiho is clear
In addition to the field of forensic science, Ogata is also good at biology and medical technology, and he must have read all the knowledge that can be related to the human body!
Because he can always be seen in the library of Columbia University.
Shiho once noticed that this guy not only reads books in his own major, but also often crosses over to read 'idle books' in other majors.
"Is there a way to get everyone to understand?" JO walked over to Ogata at this time and whispered.
Ogata nodded, trying to choose as simple words as he could, to unfold the inferences he had in mind around the corpse. However, it is up to everyone to decide whether some forensic science terms are well understood or not.
"Simple sudden death is a superficial illusion, and the real cause of death must start from the respiratory tract of the corpse, that is, the mouth, nasal cavity, and the phenomenon of water accumulation in the lungs." Ogata stretched out his gloved palm, gently pressed the sides of the deceased's nose, and carefully broke the deceased's lips with two fingers.
Everyone's eyes fell on where Ogata was pointing.
"The mouth and nose of the deceased overflowed a large amount of saliva, and the saliva was viscous, you must know that we are now in a morgue where the temperature reached below zero, and the saliva body of the deceased here is not completely condensed, which shows one thing! That is, the deceased must have consumed alcoholic beverages before his death. This is also known as alcoholism. After alcoholism. The body produces a digestive enzyme. After this digestive enzyme is fused with gastric juice, it will quickly break down the alcohol content and achieve the digestion process of excretion from the body. Therefore, digestive enzymes should be present in the digestive tract and not mixed with the saliva left in the mouth and nose of the deceased. ”
Russell was stunned, and the others slowly chewed on what Ogata had said.
"In addition to this, we have to mention a habit of the deceased." Ogata held up the stiff palm of the deceased's stiff hand hanging from his side, gently brushed the gap between the two fingers, and said slowly, "Between the two fingers of the deceased." I noticed a faint yellow color on the inner skin, which is not a so-called corpse, but a phenomenon that can also occur in living people. The deceased smoked, and it was for a long time, because of the smoke of the tar, the pale yellow color here was formed. ”
"Is this directly related to the cause of death?" At this time, the detective of the Investigation Division, who had helped Ogata speak, asked.
Ogata nodded and replied, "Usually smokers, they have dry lips and throats, and they definitely don't drink too much. There is so much saliva containing the digestive enzyme reflexively from the respiratory tract and the esophagus! In other words, the phenomena that make up the causes. There is no connection with heart attacks, which are defined as the direct cause of death, but there are other reasons for the changes we know now. ”
Shiho remembered that at the scene of the crime, Ogata had told her the analysis and inferences, and the things that sounded unconcerned would be connected together.
"Usually, a person's saliva will flow out uncontrollably, which can only explain a few situations! One, the person is in an unconscious state. Second, there are some special environmental factors that cause the human body to produce relative reflexivity in an unconscious state. Third, once the above situation occurs, then the first two places where the lesion appears, one is the lungs, and the other is the respiratory trachea! ”
"From the right side of the deceased's lungs, which is close to here." As he spoke, Ogata used acupressure to press on a certain part of the corpse, giving as much visibility as possible to everyone, and he let go of his own figure.
Russell leaned to the front, and as Ogata's reasoning got better, he slowly realized that he seemed to be underestimating the young man's level.
Others, like Russell, went to verify what Ogata was saying now.
"There is a noticeable lump. However, it is not caused by the accumulation of water in the ordinary process, but the swelling of the lungs caused by the continuous influx and loss of fluid, so when pressed, it will rise and fall from the outer chest of the deceased. Ogata's fingers continued to move, and sure enough, there were some numbing changes on the surface of the corpse.
I saw that on the surface of the skin of the upper body of the dead body, there was a bulge in the shape of bubbles, and as the pressure of Ogata's fingers was controlled, these bubbles finally reached the neck of the corpse, that is, where the respiratory tract was located.
"Emphysema, and the zombies here." Ogata pointed to the discolored skin of a certain part of the corpse: "The first thing most people see is corpse spots, and as one of the bases for 'heart attack', the form of corpse spots here is indeed important, but it masks the muscle activation form here, that is, the corpse zombie after death." Here, because the deceased was dying, he had a large-scale respiratory lesion, and his chest was undulating, and even sobbing and heart load appeared."
"However, the workload of the heart is far from reaching sudden arrest, or the direct cause of sudden death! The truth that is really hidden is that the deceased's breathing is obstructed, and there is pressure from the outside world, which causes the phenomenon of fluid reflux, which blocks the respiratory organs, makes the lungs functional, and causes death! ”
Ogata looked at Russell and said with great certainty: "So, once you get the consent of the deceased's family and perform an autopsy, you will find that the deceased's heart is not broken!" What is really broken is the human heart. ”
He looked at JO, the only officer here who believed him: "The killer created a specific environment in which the deceased exerted suffocating pressure while unconscious and unconscious. ”
"What kind of environment is it?" JO couldn't wait to ask Ogata, because Russell didn't interject from beginning to end, and it was clear that what he said was very credible. Even shook Russell as a professional forensic doctor.
Ogata took one look at the body and asked JO, "The police should have taken pictures of the crime, right?" ”
Without waiting for JO to answer, the police officer of the forensics department who had been listening next to him interjected and said, "We have photos of the scene of the crime on record, come with me." ”
The crowd came to a conference room.
The projection technology of this era is very backward. But in New York, USA. But it has been applied to the police.
"These photos were taken. It is the record of the case that we made at the scene of the crime afterwards. The police from the forensics department skillfully set up the projection equipment, and everyone's eyes looked at the projection screen.
A magnified photo of the crime scene is refracted on the projection screen, because it is about 50 inches, so everyone can see the details clearly, plus the close-up of the subsequent individual items, it can be said that the scene is not lost in everyone's sight.
Shiho looked at Ogata and saw him calmly standing on the side of the curtain and began to analyze his thoughts.
If you talk about the initial impression of Ogata. If he is still a peer who has read a lot of books and has a more intelligent mind, then looking at it now, the image of Yusuke Ogata has left a memory that is difficult to erase in Shiho's heart.
It's just because of his charm that people have to believe!
"The scene of the crime was a girls' dormitory in our school, and the furnishings at the scene were not chaotic, so around the deceased's bed, let's look at the most basic furnishings."
Ogata then made a brief judgment on the close-up of the objects flashing on each projection screen in front of everyone.
Although everyone was silent, everyone's face was focused. Apparently there is a serious listening to what the Ogasus side has to say. There is only one reason, the autopsy just now. He has proven his abilities.
After skimming through the few items left at the scene of the crime, it was finally Ogata's turn to silence Ogata for a few seconds without speaking.
All the police, including JO and Shiho, have their eyes on it.
"This is," JO asked, grimacing, with a somewhat odd expression.
Ogata slowly explained, "This is the murder weapon that created the whole case and caused the real cause of the deceased's death!" With that, he turned and looked at something that surprised everyone.
On the projection screen, what appeared in everyone's eyes was a bedside, an inconspicuous fan!
The fan is the old-fashioned, four-wheel fan blade kind, and it doesn't even have the function of shaking the head and blowing the air, so it can only be said to be a very simple cooling equipment.
But no one thought that something so simple that it didn't even get closer to it at all would actually be the 'external pressure caused by a specific environment' that Ogata deduced during the previous autopsy!
Because murder weapons, generally speaking, are injurious.
But the fan
"Can fans really do it when they kill people?" The police officer from the Investigation Division, somewhat dumbfounded, pointed to the fan in the photo and asked Ogata who was standing calmly under the projection screen.
Ogata knew that everyone had doubts, so he explained, "The murderer used a method, an uncommon method of killing. It has to be said that this technique is applied to some biology, as well as pathologies related to the human body, so that such a killing method can be fully implemented. ”
"First of all, before returning to the dormitory, the deceased had taken a large amount of alcoholic beverages, and after falling asleep, the whole person's consciousness was close to a coma, which is called deep sleep in psychology, and I think this is a very appropriate description. In the form of deep sleep, the deceased's perception is blurred, so the murderer is given a certain opportunity to arrange a specific killing process. ”
"First of all, the head of the deceased is against the head of the bed, where there is a small table and cabinet, which the deceased usually uses to place his belongings. Set up an electric fan there, which is what we see now. The next thing to do is to keep the deceased's pillow as low as possible, and then aim the direction of rotation of the electric fan as far as possible at the deceased's face, that is, the direction of mouth and nose breathing. The killer then turned on the electric fan and chose the maximum wind force to allow a large amount of air to pour into the deceased's respiratory system. ”
Then, in order to prevent the police or others from discovering the abnormality of the electric fan at the scene of the crime, the murderer can automatically turn off the switch of the electric fan after more than an hour after the specified time of the rotary knob of the electric fan is twisted to the maximum. This is a clever modus operandi that sounds very simple, but can be used to kill people and create the illusion of sudden death! Ogata finally threw out all his thoughts, and saw everyone's expressions of disbelief.
JO found it difficult to understand the fact that "electric fans kill people", and hurriedly asked, "How did this happen?" ”
"I guess Dr. Russell, I should have noticed!" Ogata turned to Raphael, whose face sank, and smiled slightly.
Everyone saw Russell with his head down, as if trying to think about something.
After a long time, he looked up at Ogata and whispered, "You mean the pores on the surface of the corpse are shrinking?" ”
"That's right." Ogata nodded, "There are some detailed symptoms on the surface of the deceased's corpse, which are the pinhole-like corpse spots that formed on the surface of the corpse after the pore contraction mentioned by Dr. Russell. The reason why these corpse spots will gradually appear after the death of the corpse is that the deceased had a full-body pore occlusion before death, and there was an expansive recovery after death. In short, these pores are like a rubber band that pulls open and returns to its original shape as soon as you let go. It's just that it happens in the human body, and it takes a long time. (To be continued......)