Thinking that there was a brown-cut black-bellied teacher staring at him behind him, Su Yuan felt uncomfortable.

(So, hurry up and start the search!) ）

Murder weapons, corpses, and the like have been searched before. Now, Su Yuan needs to search for some "details".

A flower-shaped faucet hanging from the ceiling, still dripping with water, caught his eye.

"Teacher Qin, is that thing installed in the entire building?"

"Cut, just take a look, stupid."

"Are you still angry???

(Get logical information [flower-shaped faucet]: It seems that the whole building is installed, what is it for?) ）

After inspecting the "heavens", Su Yuan turned his target to the ground, and countless small parts were scattered on the ground.

People who don't know may think that this boss is usually very sloppy, but the truth is the opposite, although this boss is bearded, he is a very neat person, according to Su Yuan's memory yesterday, these parts should have been stored in a large box.

(Obtain logical information [Scattered Parts]: Is there any reason why the parts that should have been concentrated in the storage box are now scattered all over the place?) ）

"Mr. Qin, I don't think the possibility of a robbery should be ruled out, please allow me to compare the parts at this scene."

"Allah, when will I, the lieutenant, be able to influence the investigator's actions?"

“……”

It seems that Mr. Qin is ready to watch the play on the side and wait for Su Yuan to make a joke.

(I have to be more serious!! ）

In fact, the so-called "comparison" is better than "searching", and what Su Yuan is looking for is the small brown bottle with white pills that the boss took out yesterday.

Strangely, the little brown bottle that was supposed to exist disappeared inexplicably.

(Obtain the logical information [Disappearing Little Brown Bottle]: Was it bought by someone, or was it ......?) ）

"Teacher Qin......" Su Yuan smiled, "I have a rough understanding of the outline of this incident." ”

"Oh? Tell me about it? ”

"You may not know that before the murder, there was a ...... in this building," Su Yuan paused here, "...... The sound of air defense sirens. ”

(Get logical information [Air Defense Alert]: Why did the sound of terror that existed in this world already exist in this world more than a hundred years ago, sound in this place at this time?) ）

"Go on." Teacher Qin's interest is getting stronger and stronger.

"When I entered the building, it was already after the gunshots, and I found that the ground was wet. Combined with the information we have found before, we can tell ......"

(Get the logical message [Wet Floor]: Is it related to "that" if it is very abnormal?) ）

(Integrate logical information [Flower Faucet] + [Wet Floor])

"It's probably because of the automatic fire extinguishing system, I've seen things in many places that spill water as soon as it is activated."

(Obtain logical information [automatic fire extinguishing system]: the fire can be automatically extinguished when the fire starts, why is it activated at this time?) ）

(Integrated logic information [automatic fire extinguishing system] + [air defense alarm])

"As for the air defense siren, it was probably a trick made up by the designer of this automatic fire extinguishing system, in order to drive this group of businessmen who are worried about money down quickly, I am afraid it will not work without making some energetic noise."

(Exhibit [Automatic Fire Extinguishing System] has been added to the search file)

"Combined with what happened on the spot, we can understand what is the reason for this......"

(Integration Logic [Disappearing Little Brown Bottle] + [Scattered Parts])

"Among the scattered parts at the scene, only a small brown bottle that may contain illegal drugs is missing, and usually these bits and pieces are stored in that box by the boss, so we can infer that someone took the small brown bottle."

"Illegal drugs? ......" Teacher Qin made a gesture of sniffing with his nose, "It's really full of crime." ”

(Exhibit [Disappearing Little Brown Bottle] has been added to the search file)

"If the murderer's purpose was to kill people and steal the small brown bottle, then the problem of air raid sirens would have been solved very well - in order to cover people's eyes, the murderer somehow triggered an automatic fire extinguishing system to disperse people in the building who had nothing to do with the incident."

"Mr. Su's reasoning is really wonderful," Teacher Qin chuckled, "However, there is a question here, how did the murderer do it when he wanted to trigger the fire extinguishing system and kill people here?" ”

“…… It's not clear. ”

In fact, Su Yuan had already thought of the most likely answer in his heart, but he still lacked the necessary information.

Suddenly, a young man wearing an ordinary city control uniform and holding a small note ran to Teacher Qin's side, holding on to the wall and panting for breath.

"Message, news has come! There are no fingerprints! But there are traces of one use! ”

“…… This, this is? ”

(Which one is this singing?) ）

"It's fast, good job! Sister will reward you with a fragrant kiss~"

Teacher Qin said as he made a flying kiss movement, which frightened the shy young man and fled immediately with a red face.

"Cut, it's really boring...... Teacher Qin pouted, looking pity, "Don't think that the people under my hands are all eating dry food, they went to check when they heard us talk about the fire extinguishing system, and someone did press the fire alarm button at the fire escape, but the fingerprints have been wiped off, it seems that the criminal's mind is quite meticulous." ”

(The exhibit [fire button] has been added to the search file.) ）

"Hehe, is it human-triggered...... Then it is necessary to ask the person concerned. ”

********************************

"You...... What are you doing? You're the Su Yuan from Class A, right? Don't think I don't know you! ”

Lu Renjia, a thin boy whose limbs were locked, originally lowered his head and nested in the corner of the wall specially prepared for him, and there was no movement when he talked to Teacher Qin before, but he didn't expect Su Yuan to become energetic as soon as he arrived.

(It seems that they are hostile to me, maybe they are hostile to the entire A class...... Now it's hard to do. ）

Su Yuan thought for a moment and replied:

"I'm here to save you...... As long as you are willing to tell the truth about the situation at the time of the crime. ”

"Class A bastard...... We're going to be in Class B forever going to be a bit of a line with you bastards! Don't expect a useful word to come out of my mouth! ”

The thin boy glared angrily, as if he had a lot of hatred with Class A, and said that Class A recruited them to provoke them?

However, Su Yuan will not be crushed by words today like he was in front of the boss and uncle yesterday.

Su Yuan closed his eyes and recalled the books he had read in the library yesterday.

(Observe the other person's reaction carefully and say every word carefully.) ）

(When the opponent puts on an offensive posture, you should wait and see what happens, and you should not act rashly.) ）

(At the same time, don't be too negative, and try to trick the other person into telling more information.) ）

(When you get enough information, debunk what he wants to hide in his words in one fell swoop!) ）

"Okay, so can you tell me what you're here for?"

"What? I'm a big man, where do I want to go, what do I want, you don't care? Tell you, no one cares about me if I want to go to the women's branch at my age abroad! ”

(The reaction is so intense, let's wait and see what happens)

"What am I doing here? Guess what? Guess what? ”

(The reaction is still violent, this place can't be forced, let's try other places first.) ）

“…… Okay, can you tell me who you are? ”

"Me? Lu Renjia, the captain of the first squad of Class B! I'm telling you, Class A bastards, you're going to be defeated by me sooner or later! ”

“……”

"Hmph, if it weren't for beating you bastards, my people and I would have used that?"

(Huh?) What do I think I just heard? ）

"What's that?" Su Yuan asked sharply.

“…… Okay, you can trick me into telling it, but if you want to know more, no way! ”

(This information can be jotted down and should be useful.) ）

"You let me guess what you're doing here, so how do I guess?"

After secretly noting down what Lu Renjia said, Su Yuan asked the first question again.

"Guess? What can I do here as a magician? Isn't it just a matter of shopping for something? How? The big genius of Class A can't even figure out this little problem? ”

(Looks like this guy hasn't figured it out yet...... ）

Thinking of the other party's identity and the evidence he had obtained before, Su Yuan showed a victorious smile.

"Isn't it for 'that thing'?"

“…… How do you know whoaaa Wrong...... What did I say!! ”

"Since it's all exposed, let's just say it, otherwise, I have good reason to think that you killed the boss because of 'that thing'?"

“…… Just say it! But I'm still the same one, don't expect a useful word to come out of my mouth! ”