My Partner is Shiina Mashiro

"Ignition device?" Shizuka Hiratsuka frowned, "It's strange, I've searched all the information, but there is no such thing as an ignition device at the scene, could it have been burned in the fire? ?”

"I think that device should not have been destroyed by the fire."

Liu Sen shook his head.

"The murderer did use a device that would automatically ignite the fire after he left safely, and that device remained intact at the scene. That was the fire extinguisher that served as the murder weapon."

"After the prisoner poured gasoline, he filled the entire room with flammable gas, hung the fire extinguisher on the copper ring in the ceiling hole, and left the small room through the underground passage."

Liu Sen held his hands in a virtual circle, and then twisted his clenched left and right hands in a 180-degree circle.

"Then it's like this. The prisoner only needs to adjust the switch in the underground facility to flip the small room again. When it reaches a certain angle, the fire extinguisher will automatically fall off..."

"...finally slammed into the ground and sparked."

"Do you use a fire extinguisher to light the fire?" Shizuka Hiratsuka nodded her chin thoughtfully, "...It sounds a bit whimsical."

"Indeed, I also think this idea is a bit whimsical."

Liu Sen smiled embarrassedly.

"So in order to prove that this device is feasible, I have personally tested it many times in the past two days."

"I finally found out that the bottom of the fire extinguisher was covered with some red phosphorus debris."

Liu Sen observed Hiratsuka Jing's expression again and for the last time.

"Mr. Hiratsuka Shizuka, I've stopped here, haven't you discovered the horror of that murderer?"

"The scary thing?" Hiratsuka smiled and tilted her head, trying to pass the test.

"Kawaii pinch... Can a 30-year-old woman be so cute..."

"No, it's useless to be cute!"

Liu Sen shook his head hastily.

"Don't change the subject, Mr. Hiratsuka Shizuka, haven't you found out yet? It's different from the case of Ebina Hime who fell from a building and the case of Miura Yumiko poisoning. The murderer in the murder case of Yuhihama Yui and Hikigaya Hachiman , did this perfectly when committing the crime—”

"That means there is no evidence left at all!"

"Since the morning before yesterday, I, Mashiro, Gilgamesh, Xiao Ai, and almost half of the police force in Chiba Prefecture have searched the underground facilities for more than 48 hours, but they haven't even found a single fingerprint. I'm afraid, this is The reason why the murderer wore gloves the whole time he committed the crime."

He took out a cigarette and threw it to Shizuka Hiratsuka at the same time. Liu Sen was not in a hurry to smoke, but just put the cigarette in his hand like a pen and tossed it back and forth.

"This murderer is really very smart. He took into account all the details when committing the crime, and made an extremely thorough plan, leaving almost no flaws or loopholes for himself."

"First and foremost."

Liu Sen held out a finger.

"He knew that if he used a flashlight on campus, there would be a risk of being discovered by security and monitoring, so he specially painted luminous paint on the passageways of the Gendarmerie Command and underground facilities to guide him to find his way in the dark."

"And then the second point."

Liu Sen stretched out his second finger.

"This murderer has extremely strong anti-detection capabilities. He has tried his best to create smoke bombs for the police's detection work... That confusing thermos is most likely also a disguise of the murderer. The purpose is to divert the detective's attention. To Yukinoshita Yono and Miss Riko."

"As for the third point..."

Liu Sen stretched out his third finger slowly.

"I even suspect that the reason why Yuigahama Yui's dormitory exploded is probably the murderer's fault."

"Is that so?" Shizuka Hiratsuka suddenly realized, "I didn't find Yuigahama Yui's room key at the scene or in Hikigaya Hachiman's body and Yuigahama Yui's body. I'm afraid it was taken by the murderer. Open the door of her room."

"In addition, the structural diagram of the underground facility drawn by Zhenbai also reveals this possibility. This place is very important."

Liu Sen handed over a drawing to Shizuka Hiratsuka.

"Obviously, a branch road of the underground facility leads to the student dormitory of Zongwu High School. As long as you take this underground road, you can bypass the monitoring and enter it without anyone noticing."

"I'm a little confused about the fact that I've started." Liu Sen scratched his head embarrassingly, "Because when Zhenbai and I were trapped below, the exit couldn't be opened."

"However, the reason that was found out afterward was ridiculous."Liu Sen rolled his eyes angrily, "It turned out that the police car was parked there after the incident, and the manhole cover used as an exit was suppressed."

Slowly sorting out the clues, Liu Sen continued to speak along his own train of thought.

"The reason for the fire at the scene was that the heat was so dry that it ignited the chemical flammables next to it. If I guessed correctly, the murderer used a simple timing device."

"Put a hot water bottle that is inserted into the hot water bottle and flammable gasoline together, and when the water in the hot water bottle is burned out, it will heat up violently and burn through the plastic bottle containing the flammable gasoline..."

"I'm afraid the murderer has calculated that the police will enter Yuihama Yui's dormitory for investigation. Because the power must be turned on during the investigation, and the device will be officially activated until then, so that the fire can be caused when the police enters the investigation."

Liu Sen shook his head and laughed. In fact, when he thought about the methods used by the murderer to commit the crime, he couldn't help but praise the murderer in his heart.

"The most wonderful thing about this device is that it gave the police the illusion that the fire was caused by Yuihihama Yui's own negligence, which is similar to the device that used a fire extinguisher to ignite the fire... Even if the police find the kettle It heats up quickly, and you won't notice any abnormalities at all."

"The reason why the murderer had to burn Yuigahama Yui's dormitory was to distract the police's attention on the one hand, to destroy the evidence related to Yuigahama Yui on the other hand, and to destroy the evidence of committing the crime— —”

"Destroy the evidence used to commit the crime?" Shizuka Hiratsuka asked in confusion, "What kind of evidence is that?"

"I think it should be the clothes and glove handles that the murderer wore when he committed the crime." Liu Sen pondered for a few seconds, and then said, "The gloves that the murderer wore to avoid leaving fingerprints when committing the crime, and the gloves he wore at the scene The piece of clothing that can detect flammable gas components was placed next to the automatic ignition device that heats up quickly, and it has now been reduced to ashes along with other items in Yuigahama Yui's room."

"Three birds with one stone." Liu Sen couldn't help admiring, "It's really smart."

"Teacher Shizuka Hiratsuka, it is no exaggeration to say that if I have the opportunity to teach in the police academy in the future, I will definitely mention the real culprit in this case to my students."

"But I think it would be a pity for a conscientious and responsible police officer like Officer Liu to go to the police academy to teach."

There was a trace of determination in Hiratsuka Shizuka's eyes.

"Officer Liu, if I'm not mistaken, you already know who killed Hikigu Hachiman, right?"

"...Yes." Liu Sen's tone became a little more serious, "To be precise, he is the murderer of this serial murder case!"

"Mr. Shizuka Hiratsuka..."

Liu Sen softly called Shizuka Hiratsuka's name.

"The case of Ebina Himina falling from a building, the poisoning and murder case of Yumiko Miura, and the murders of Hikigaya Hachiman and Yuigahama Yui, they seem to be three independent incidents, but they are actually related to each other."

"The connection is 'someone'."

"Someone?" Shizuka Hiratsuka spread her hands.

"The people involved in the three cases, Ebina Himina, Miura Yuiko, and Yuigahama Yui, all communicated with a person not long before the case happened. That's when they went to Shizuka Hiratsuka for psychological counseling! "

Liu Sen bowed in the direction of Shizuka Hiratsuka.

"Although it is rude, I made a scene in your office two days ago and found these printouts."

[April [-]th: Iron Fist said, I am too cowardly]

[April [-]th: It's all my own problem... I can't blame Iron Fist, I'm just like what she said, what I have done since I was born is completely no different from a self-abandon... I have decided, I must prove it Show Tekken, I can definitely do it!Even if I can't do it, I will die for my dream as Iron Fist said! 】

"These are the missing diaries of Ebina Hime, aren't they?"

"I also asked Yumiko Miura, the poison bottle was indeed given to her by you."

"Although I haven't found any documents related to Yuigahama Yui, I can fully suspect that you took advantage of the fact that she is currently bedridden to instruct her to burn those exam papers!"

"But is it really good to randomly suspect others without finding the documents?" Hiratsuka sneered and shook her head, "I'm afraid this is not your usual style, Officer Liu?"

"Indeed. Because of this, I have asked someone to confirm..."

"Ms. Liu...we found it." The two sisters hurried over and handed an old note to Liu Sen before even wiping the sweat off their foreheads.

"Thank you, Yukino." Liu Sen forced a smile in the direction of Xue Nao.

"...No, you're welcome."

"That's enough, these evidences are enough..." Liu Sen took a step forward and moved closer to Shizuka Hiratsuka, "This way the chain of evidence is quite complete——"

"It's enough to prove... Mr. Shizuka Hiratsuka, you are the mastermind behind this series of incidents! You are the single-handedly responsible for the serial murders of Sobu Gao!"

Hiratsuka remained silent. It seemed that Liu Sen's guess was correct, so should we proceed as planned?

But let's wait, Liu Sen knows what he is going to do now, only by putting enough pressure on Shizuka Hiratsuka, and waiting for her to confess, can he win the final victory.

"Mr. Hiratsuka, Officer Liu asked me yesterday if I believe his reasoning."

Standing behind Liu Sen, Yukino Yukino grabbed Liu Sen's clothes desperately.

"I have known Police Officer Liu for a while, and I believe in his ability to handle cases, but last night, I said without hesitation: 'I don't believe it!'."

"I can't imagine how you, who are so kind both in get out of class and after class, could be a murderer!"

"You who took the initiative to comfort her parents after Ebina's death, how could you be the murderer!"

"You who informed Shiina in time when Yumiko Miura attempted to commit suicide, how could you be the murderer!"

"I can't imagine it!"

The coldness of the past completely disappeared, like a shrew who scolded the street, Yukinoshita Yukino's voice became louder every time she shouted.

"In my mind, you are the best teacher in the entire Zongwu High School. Those guys in the school management committee just regard us as a score machine, but we are by your side, we are the most clear- —You have always treated us as friends!"

"You are actually a murderer like that... How can I believe that!"

"...Miss Yukinoshita Yono, please take Yukino away first."

In order to distinguish the two sisters, Liu Sen purposely called them by their names affectionately.

"The current situation is still a bit unacceptable to you."

"No, Officer Liu, let them stay." Hiratsuka Shizuka, who had been sneering and silent all this time, suddenly said at this second, "What's the use of letting them escape the terrible scene? It's cruel, so why put a beautiful veneer on it?"

Push the book~ "Naruto: Sasuke in Women's Clothing" is a good book.

Chapter 260 Five

"Thinking that life will be better if you avoid the darkness of reality... This is the so-called teenager."

"You, what are you talking about?"

Liu Sen took two steps back subconsciously, the terrifying aura on Hiratsuka Shizuka who was sneering was too scary.

"Am I wrong?" Hiratsuka asked with a sneer, "Isn't the teacher's accusation teaching students to face reality?"

"Teach them that the reality cannot be changed, teach them how to adapt to society, and let them become talents that meet the needs of real development. This is education, isn't it?"

"That's why, Xiao Xue Nai, you saw that I have always been amiable and amiable, so you set me up as a good teacher in your heart. This is enough to show that your mind is not mature enough..."

"...Teacher Shizuka Hiratsuka, what, what does this mean?!" Yukinoshita Yukino covered her mouth.