With this additional reward, Liu Jianfeng's thinking suddenly became smoother, and he directly told Liang Mengzhu: "The worker who repaired the solar water heater is the murderer!"

Liang Mengzhu was also very simple: "I'll send you one first!"

Liu Jianfeng checked his mobile phone, and sure enough, a handsome police flower photo in full uniform was sent to his mobile phone.

Liang Mengzhu is very shy, Liu Jianfeng is very excited, it feels like a pediatric, but it is one of the very interesting and ambiguous ways of communication between couples, sending some photos to each other, not only **, but also emotional communication, which is a kind of frank and unreserved expression to each other.

Liu Jianfeng said happily: "First of all, this community is new, the house is new, and it is used by the rich to support lovers, so from the perspective of home decoration, almost all of them are big brands, and the quality is guaranteed in a short period of time, and the solar water heater will not break down suddenly."

It is estimated that the killer deliberately sabotaged it, so that he could swagger into this house.

The killer must have had a deep understanding of the hostess before, at least knowing that she was an infectious disease nurse with a serious cleanliness habit, and knowing that she had a habit of cleaning the room as if she had obsessive-compulsive disorder.

So the killer successfully took advantage of this, he came to repair the water heater, and then the toilet was convenient, with the character of the hostess, she must not be able to accept the convenience of strangers in her own toilet, but it is not easy to refuse, so she can only do a comprehensive cleaning afterwards, and use a lot of toilet cleaner. ”

Liang Mengzhu nodded, indicating that he agreed with his reasoning, and sent another photo, this time changing into a summer uniform.

Liu Jianfeng said with high morale: "The killer must have grasped the dynamics of the deceased in advance, and knew that the deceased would come to have a tryst with the hostess that day, so he deliberately used the repair to consume it before the deceased came, and then borrowed the toilet, so that the hostess had to clean it immediately."

Maybe in the middle of cleaning, or just after cleaning, the deceased came, because it was five o'clock, close to dinner time, so after a brief exchange between the two, the hostess went out to buy vegetables. ”

"Don't sell it, let's talk about the point, how did the deceased die?" Liang Mengzhu said, and shook his phone.

"You know that there are dangers and accidents all the time in our lives, and when it comes to toilets, disinfectants and detergents are made up of special chemicals, and the combination of the two can produce a terrible toxic gas, and an overdose can kill people in an instant. Liu Jianfeng said: "So I guess that the murderer took advantage of this feature, first of all, he knew that the hostess had the habit of using detergents, as long as the hostess cleaned the toilet and then found a way to add disinfectant, it would be able to create poisonous gas, and then poison the deceased." ”

"How is this possible?" Liang Mengzhu denied: "At that time, only the deceased was alone in the room, could it be that the killer came back again, the deceased would definitely find out, but there was no trace of a fight at the scene."

If the killer put disinfectant in the bathroom before, then the hostess is a medical staff, and she should be very sensitive to this and will definitely find out.

Besides, there will be a strong smell when we take things, but when we arrived, there was no pungent smell in the air, but a faint sweet smell.

"It's very simple, the times have progressed, and the disinfectant is no longer static, and now many manufacturers have begun to add flavors to the disinfectant solution in order to neutralize the odor. Liu Jianfeng said: "In addition, the killer can complete the delivery of disinfectant without being at the scene." ”

"I'll take a look?" Liang Mengzhu said disdainfully.

Liu Jianfeng didn't speak, just looked at her mobile phone, Liu Mengzhu's face turned red, glared at her fiercely, and sent another photo, the first time they met, he knew that Liang Mengzhu had a pair of peerless beautiful legs, he couldn't wait to feel a deadly scissor feet, you can imagine how charming those legs are.

At this time, I enjoy the static photos, and the legs are even more like how to look and play, and I can play for a lifetime.

Liu Jianfeng smiled with satisfaction, and was immediately sprayed with Mrs. Oral Liquid by Liang Meng, wiped his face, but did not speak, but pointed to the toilet.

"What do you mean?" Liang Mengzhu was completely confused.

Liu Jianfeng simply went over and lifted the lid of the toilet tank, and Liang Mengzhu suddenly realized: "You mean that the murderer added disinfectant to the water tank in advance? But this is not right, because after the murderer left, the hostess cleaned the toilet, if the water tank is disinfectant, it will definitely be flushed when cleaning, and poison gas will be produced at that time." ”

"Clever. Liu Jianfeng praised and said: "So in order to implement this plan, the murderer wants to destroy the solar water heater and pretend to be a maintenance worker."

If you need to repair the water heater and change the pipes, then you must turn off the water supply and operate it when the water is off.

The characteristic of the toilet is that even if the water is stopped, the tank will retain the previous tank of water.

Since the murderer knows that the hostess will clean the toilet and flush the water in the original tank, then he can pour the disinfectant into the water pipe of the toilet in advance when the water is stopped, and after the valve is reopened, the water tank will be refilled, and the disinfectant will appear in the water tank, as long as the deceased goes to the toilet to flush, the disinfectant will be neutralized with the detergent, and the poisonous gas will be produced!"

Liang Mengzhu frowned, he didn't expect this kind of operation: "But in this way, isn't the disinfectant diluted with the water?"

"The concentration is deliberately blended, and similar disinfectants and detergents neutralize the poisoning incidents in an endless stream, basically housewives who do improper housework when doing housework, they must add a lot of disinfectant and detergent, so only a small amount will produce harmful gases. Liu Jianfeng deliberately cited a factual basis to explain.

"It seems to make a little sense, but ......" Liang Mengzhu under the leadership of Liu Jianfeng, her brain began to slowly open, she herself has professional knowledge and talent, but unfortunately the case she encountered is too complicated, beyond her cognition, and now Liu Jianfeng is leading the way of thinking, and she has become shrewd: "But how can the murderer be sure that the deceased will go to the toilet in a short time, if it takes a long time, the chemicals in the detergent will volatilize, and there will be no chemical reaction, or the reaction will be very weak." ”

Of course, this is also within the murderer's calculations, otherwise he would not have chosen to do it on that day. Liu Jianfeng said, with a smug expression that couldn't help me: "You obviously don't have a comprehensive understanding of the case, and I just know that that day was Wang Changfa's company, the signing day of Haisheng Group and Xicheng District Municipal Engineering Project, and a grand signing ceremony was held at noon, and many leaders were present in person that day."

So it is conceivable that there must be a banquet at noon that day, and this level of wine banquet is naturally to drink more and eat less vegetables, which also just explains why Wang Changfa came to find his little lover, but as soon as he entered the door, he was anxious to ask people to buy vegetables and cook, obviously he drank from noon to afternoon, and most of them were drunk.

In this state, it is not surprising that people go to the toilet frequently, and after flushing, toxic gases are produced, and no matter how drunk they are, they are not aware of it, and it is not fresh. ”

"Oh my God, it's all done!" Liang Mengzhu finally showed a surprised expression in admiration. 、

Liu Jianfeng said indifferently: "It's nothing, if you want to kill someone, and it's a perfect murder plan, you naturally have to carefully prepare and plan, the right time, place and people, all of them are indispensable, but also to make use of the dynamics of my target person, and to take all factors into account to implement, so as to improve the success rate!"

"If you kill someone, you must be able to do it perfectly, right?" Liang Mengzhu looked at him and said.

"If it were me, it wouldn't be so much trouble, it's disgusting to deal with the toilet. Liu Jianfeng pouted and said: "Since I have successfully pretended to be a repairman, I will directly add toxic substances to the water tank of the water heater, which can poison people on the skin, which is simpler and more effective."

Or instead of filling the water tank, you can mix a large amount of disinfectant and detergent directly into the water tank, and when you take a bath, a large amount of toxic gas will immediately gush out. ”

"You ......" Liang Mengzhu was completely speechless, looking at Liu Jianfeng like a devil, and I have to say that his method is indeed more effective, because since he is a lover, he will definitely take a bath, and this method is indeed more secure.

Liang Mengzhu wanted to take him directly to the police station for interrogation, feeling that this guy must have a murder case on his back.

Looking at Liu Jianfeng's stinky fart, Liang Mengzhu's eyes suddenly lit up, and said, "Hey, you analyzed it yourself just now, because you didn't say the sentence 'Oops, I remembered'!"

Liu Jianfeng, who got carried away, was suddenly shocked, yes, it seems that he forgot to say this.

He is now a traveler, and from the perspective of a future person who knows everything about things, he recalls the process of the case, not his own analysis!

Careless, careless, it's all these private photos.

Peeking at Liang Mengzhu, seeing her expression of waiting for an honest explanation, Liu Jianfeng gritted his teeth and said: "Thanks to you, when we were in love, I let you accompany you to see a lot of complete crime cases around the world, so I had associations from this." ”

"Hmph. Liang Mengzhu snorted angrily, because this really makes sense, she really likes to watch cases around the world, especially like reasoning detectives, to exercise her thinking skills, as for whether she has really seen it with him in the future, the ghost will know.

Liang Mengzhu pulled Liu Jianfeng out of the door, suddenly reached out and hugged his shoulder, and asked Liu Jianfeng like a good buddy: "I am a policewoman who does not forget my original intention and remembers my mission, and you, as a traveler, do you still remember your original intention and mission?"