Chapter 160: Strange Bullet Holes
10:25 a.m.
Lin Xinyi led Caesar with a gloomy face, took Mao Lilan and others, took the elevator from the studio on the 9th floor, and came to the murder scene on the 4th floor.
The scene of the murder was a utility room at the end of the hallway.
The deceased was shot in the head and sat down in front of a glass window that was flipped upside down.
Beside him was a blood-stained cell phone and a pistol with a silencer, which seemed to be the murder weapon.
The deceased had a visible penetrating bullet hole on his forehead, and a pool of blood mixed with a little brain was splashed on the glass window behind him.
No one can survive this kind of injury, and they don't need to go up to check, Lin Xinyi knows that this guy is too dead to die.
"Suwa, Suwa..."
"Why is this happening, Suwa!"
Takashi Matsuo, who had been with him, shouted at the corpse with such an excited expression.
"Don't get excited."
"This room is a murder scene, and you are not allowed to come in."
Lin Xinyi blocked Matsuo, who seemed to want to rush forward, in time, and asked by the way:
"Tell me about the deceased first."
"Yes..."
Takashi Matsuo stopped, and tears were still oozing from his eyes:
"His name is Michihiko Suwa, and he is the producer of our program team, and he is also... Also my best friend. ”
"And when was the last time he was seen?"
Takashi Matsuo couldn't answer this question, but other staff members at the scene quickly answered:
"Mr. Suwa, I was still in the office on this floor before 10 o'clock, watching your live broadcast from Manager Hayashi."
"He's 10 o'clock... That's right, it's 10 o'clock, when the live show enters the 3-minute break. “
He answered the phone, and then he left in a hurry while making a phone call.
"Ten o'clock?"
Lin Xinyi's heart moved:
The deceased was still alive at 10 o'clock, and now it's only 10:25.
In this relatively short period of time, the murderer dared to kill people with a pistol with a silencer in this crowded building, and after killing someone, he could disappear without a trace.
This shows that the murderer was familiar with the building and that the murder was premeditated.
And the deceased would not leave the office for no reason and run to the utility room, where no one usually comes.
In other words, the phone call he received at that time was most likely from the murderer.
"Does he usually have a grudge against anyone?"
Lin Xinyi thought for a while, and asked the other members of the program team who followed around:
"Nope." Everyone shook their heads in unison: "Suwa is very popular, I haven't heard that he has a grudge against anyone." ”
"yes... Suwa is such a good person, how could someone shoot him so cruelly! ”
Takashi Matsuo wiped his tears and said in a moving tone.
"Is there surveillance near this utility room?" Lin Xinyi asked again.
"Nope."
A staff member with knowledge replied:
"This utility room is at the end of the hallway, on the edge."
"This area has not been monitored."
"And if you climb the stairs from the emergency access, you can get to this room without completely avoiding the surveillance cameras."
"This..."Lin Xinyi frowned slightly:
For the time being, no suspicious targets with motives for killing can be found, and surveillance cannot be counted on.
In this case, it is necessary to start with the on-site investigation and post-mortem work.
And he was thinking so in his heart, only to hear a confident and powerful voice echo at this scene:
"I see!"
Maori Kogoro came uninvited and made a shining debut:
"I think it must be because of this detective program produced by Michihiko Suwa to promote fighting crime, which angered those lawbreakers in society."
"Those bad guys hate Suwa, so they sneaked into the TV station building from the unmonitored escape staircase and killed him with a gun!"
"It's impossible..."
Conan, who didn't know when he would get into the scene, couldn't help but say:
"How would outsiders know that the escape staircase of this building is not monitored?"
"And it's even more impossible for outsiders to know that Mr. Suwa will appear in this unmonitored utility room at this time, right?"
"So, I think most of the murderers are insiders of the TV station, or acquaintances of Mr. Suwa~"
Conan spoke milkily about his thoughts.
"......" Lin Xinyi silently cast a not very friendly look at him.
Mao Lilan on the side suddenly understood what the teacher meant:
"Conan, why did you run to the scene of the murder again!"
She stepped forward, picked up Conan, and threw him into Kogoro Maori's arms:
"And Dad, you're too..."
"The case will be investigated by our forensic class, you just take care of Conan, don't crowd the scene and make trouble."
"You must know that the more people who appear at the scene, the more disturbance the traces of the scene will be!"
She now knows how important it is to protect the traces of the scene.
Therefore, without waiting for Maori Kogoro to react, Maori Lan gently pushed with his hand and sent his father out of the room with Conan.
Mori Kogoro stood outside the door with Conan in his hands, staring at the small with big eyes, and both faces were pitiful.
But Mao Lilan completely entered the state of work, completely ignoring the two men in his way:
"Mr. Lin Xinyi."
Maolilan volunteered:
"Since everyone from the forensic class hasn't arrived yet, let me be in charge of the on-site investigation."
"Well, that's how it was arranged."
Lin Xin nodded, and then assigned tasks to the other two companions:
"Asai, you just changed your career to become a forensic doctor, so follow me first and learn the steps of an autopsy."
"Caesar, I don't need you to come out yet."
"Squat outside the door and don't let outsiders break into the scene."
"Wow!" Caesar answered smartly.
It then turned to face outward, and squatted down like a stone lion guarding the door.
Lin Xinyi and others opened the forensic investigation box and the on-site investigation box, found gloves, shoe covers, hair covers, and masks, and put them on separately.
Subsequently, Mao Lilan was responsible for investigating the traces of the scene, and Lin Xinyi took Asai Chengshi to examine the body.
And in the face of the deep blood hole on the head of this corpse, Lin Xinyi's gaze couldn't help but be a little solemn:
"Shooting... Somewhat troublesome. ”
Lin Xinyi was very afraid of encountering a shooting.
If nothing else, it's because he really lacks experience in dealing with shootings.
Although I have learned all the knowledge that should be used in class, this is a profession that emphasizes practice and theory.
With too little practical experience, theory often fails to play its due role.
The last time he dealt with the murder case of Sewa Sontoku, Lin Xinyi only relied on trace detection technology to solve the case, and failed to find any valuable clues from the body itself.
But there's no way around it...
Whoever makes the domestic security too good, he wants to accumulate experience in dealing with shooting cases, but he has no chance.
And I have to admit that in this professional field, it is still the lighthouse country that is the strongest.
They have a high academic level and rich practical experience, and they lead the world in forensic science research on gun wounds, which is not comparable to those backward countries that have few shootings.
"Forget it... First, the autopsy was done according to the process. ”
Lin Xinyi sighed lightly, then took Asai Chengshi and began to perform an autopsy according to the procedure.
While silently remembering Lin Xinyi's autopsy techniques, Asai Narumi asked curiously:
"How can there be a bullet hole in the glass window behind the deceased?"
"Won't the glass window shatter if it's hit by a bullet?"
"No, it won't."
Lin Xinyi replied casually:
"You think that if you are hit by a bullet, the glass will definitely break, you must have watched too much TV."
"In fact, the bullet is extremely fast and has a large kinetic energy, while the contact area between the bullet and the glass is very small, and the pressure is very large."
"So, when a bullet hits the glass, it tends to chisel a small hole like a drill instead of breaking the whole piece of glass."
"Especially this case..."
"The pistol bullet used by the murderer is so penetrating that it can gouge through the brain and then through the glass window."
Lin Xinyi pointed to a splash of blood on the glass window and said:
"Splattered blood is the best clue to the exact location of the deceased when he was injured."
"You see, this splattered blood stain is around the bullet holes in the glass window, in a circular distribution."
"From this, it can almost be determined that the deceased was standing in front of this glass window when he was shot."
"And the bullet first went through the brain of the deceased from the forehead, and then from the back of the head, through this glass window."
"Blood splattered out of the back of the head with a bullet that left such a splattered blood stain on the glass window."
"Hmm... I understand. ”
Asai nodded thoughtfully.
At this time, Mao Lilan, who was in charge of the scene investigation, seemed to have made some discoveries.
She carried 4 transparent evidence bags containing a bullet casing, and said to Lin Xinyi:
"Mr. Lin Xinyi."
"I found three bullet holes in the wall next to the window and four bullet casings in the corner."
"With the addition of a shot in the head of the deceased, the number of bullet holes and shells matched."
"So, I think..."
Maolilan carefully said his inference:
"The murderer must have called Mr. Suwa to this room by phone."
Then, he pulled out a pistol with a silencer and frightened Mr. Suwa into retreating to the window.
"The murderer opened fire and chased Mr. Suwa, who was fleeing in the room."
"Three of the bullets missed the wall, and one hit Mr. Suwa's forehead before he chiseled through the glass and flew out."
"It seems that this murderer's marksmanship should not be very good, and he is also more excited when he shoots."
Lin Xinyi was silent and did not rush to express his position.
In fact, Maoliran's reasoning, although simple, does explain what is being discovered now.
Then let Caesar smell the scene, especially the smell of the pistol left on the scene, and maybe find the suspect.
And as long as the suspect who was found is confirmed to have the time and motive to commit the crime, lock him up and investigate, the case will almost be solved.
Merely... Is it really that simple?
"I always feel like something is wrong."
Lin Xinyi frowned tightly and moved his gaze back to the bullet hole on the corpse's forehead.
Recalling the knowledge of gun and bullet creation that he rarely used after he finished learning, he suddenly realized something:
"No, this bullet hole seems to be too 'oval'."
"What do you mean?"
Mao Lilan was slightly stunned, and Asai Narumi also cast a puzzled look.
"If the warhead enters the body vertically, the inlet should be perfectly round."
"If the warhead is fired into the human body at an angle, the mouth will form an oval-shaped skin defect."
"The sharper the angle of injection, the more 'flattened' the oval-like shape formed."
"And this oval skin defect on the forehead of the deceased... It's not your average 'flat'. ”
"This shows that the angle of entry is very sharp - the angle of the murderer's shot, it seems a bit special."
Lin Xinyi thought for a while and said to Asai Chengshi:
"Take a ruler and measure the length of the horizontal and vertical axis of the bullet holes in the corpse."
"I'm going to calculate the angle of intake."