After Li Andi and Chen Chuyao left the police headquarters, they immediately rushed to the pharmacy where they had been before. The person in charge was slightly surprised to see the two people returning, and immediately came forward to ask them what their purpose was.

"We found that the model of the oxygen cylinder Xie Changjing purchased recently is different from the one he purchased before, so we want to know the specific situation!" Andy Li said straightforwardly.

"Oh?!" The person in charge was slightly confused. He didn't expect that the two of them would pay attention to such minutiae. They took the list back and looked at it carefully.

"Oh...that's it!" The person in charge pointed to the oxygen cylinder model he purchased recently and explained: "This model of oxygen cylinder is a product with error-proofing function. Simply put, it can prevent the user from causing a supply accident due to improper operation.

Not enough oxygen!”

After Li Andi and Chen Chuyao heard this, they both nodded slightly, thinking that this made sense. Since they were using safer products, they should be able to provide better protection.

"Actually, we also have fully intelligent smart oxygen bottles that can monitor the patient's physical condition and make timely changes in oxygen content. However, many people still buy cheaper mechanical oxygen bottles," the person in charge said.

Continue to introduce.

"Are you saying that the products Xie Changjing purchased recently are not the latest technology?" Chen Chuyao immediately noticed the contradiction in the entire incident.

"Yes! This kind of mechanical oxygen cylinder with error-proofing function has always been available! It is not the latest model." The person in charge replied simply.

"Xie Zhijie is from a wealthy family, so he can use more expensive smart oxygen bottles with higher technical content." Chen Chuyao continued: "Xie Changjing has always chosen cheap mechanical oxygen bottles, but this can be determined by usage habits.

Explain. But why did Xie Changjing suddenly choose another oxygen bottle that is not the latest product recently?"

"Chu Yao, do you mean that Xie Changjing did this intentionally!?" Andy Li followed Chen Chuyao's train of thought and said.

"Of course we don't rule out the possibility of coincidence!" Chen Chuyao said thoughtfully: "Can we take a look at those two types of oxygen bottles?"

"sure!"

The person in charge readily agreed, and then took the two of them to the product display area. They found two different types of oxygen bottles and showed them to Chen Chuyao and Li Andi for inspection.

Chen Chuyao carefully looked at the two oxygen bottles placed side by side. From the appearance point of view, she could not see any difference at all.

After Andy Li observed it, he also felt confused and asked: "What is the difference between these two models of oxygen bottles?"

The person in charge pointed to the position of the valves of the two oxygen cylinders and explained: "The main difference between the two oxygen cylinders is this valve."

The person in charge first pointed to the old oxygen cylinder valve and said: "This kind of valve does not have a mistake-proof function. The output of oxygen starts from 0, and the oxygen content is adjusted by the user adjusting the position of the valve knob. If the operation

If you make a mistake and the oxygen level does not reach the value required by the patient, it is likely to cause serious consequences."

Chen Chuyao and Li Andi carefully looked at the valve and the mechanical flow meter with a pointer that can read the oxygen content. The scale of the flow meter does start from 0 to the maximum flow rate of the oxygen cylinder. The text on the scale

It is very small. Even young people like Chen Chuyao and Li Andi need to get closer to read it carefully to see clearly.

The scale on the surface. Fortunately, the flow meter has visual color markings. The low and high oxygen content areas are marked with red to indicate danger, while the normal oxygen content area is marked with red to indicate safe.

Green mark. Users only need to ensure that the pointer of the flow meter points to the safe green area to ensure that the oxygen flow rate is within a safe range.

The person in charge then pointed to the oxygen cylinder with error-proofing function and continued: "This oxygen cylinder is equipped with a pressure one-way valve. The valve will only be opened after the oxygen flow reaches a safe value, ensuring that the user will not be in trouble due to misoperation.

Resulting in insufficient oxygen levels.”

Chen Chuyao and Li Andi took a closer look at the valve and flow meter of this oxygen bottle. As expected, as the person in charge said, the starting value of the flow meter is not 0, but starts directly from the normal oxygen content area until it reaches the maximum value.

The flow value. The color markings of this flow meter are also slightly different. First there is a green mark in the safe zone, then slightly above the safe zone, a yellow mark is used to indicate early warning, and then a red mark is used to indicate danger.

logo.

Chen Chuyao thought for a moment and then said: "The crime structure has basically taken shape..."

Then, Andy Li summoned three inheritance heirs to the old man Xie Zhijie's house in the name of a staff member of the life insurance company.

After everyone arrived, the three heirs unexpectedly discovered that beside the two insurance company staff they had met before, there was actually Lucy, the maid of Mr. Xie Zhijie during his lifetime.

"Why is this woman here?!" Xie Changming asked in surprise and impatiently.

"Yes! She has been fired! She shouldn't be here anymore!" Xie Changjing also said in a bad tone.

Xie Changliang always looked gentle and elegant, but remained silent.

"Could it be that this woman also has a share of the insurance money?" Xie Changming seemed to have thought of something, and said sternly: "We absolutely cannot admit this! She is my dad's servant! How can she inherit my dad's insurance?

Here’s gold!”

"I have called everyone here today because I have something to tell you!" Andy Li said calmly.

After hearing this, several people looked at each other for a while, but Xie Changming was the first to say: "What are you talking about! Is it about distributing insurance benefits? If not, I don't have time to waste it here with you!"

"Is it still related to the insurance compensation investigation?" Xie Changliang asked tentatively.

"Are you still finished?" Xie Changjing said impatiently: "If you want to send something, then do it quickly. If you don't, forget it! Don't be pretentious!"

"What I want to announce to you today is..." Andy Li said loudly: "The death of old man Xie Zhijie was not a natural death! It was someone who did it deliberately."

When Lucy heard this, she knew that Andy Li and Chen Chuyao must have found out the real cause of death of the old man Xie Zhijie. Perhaps the identity of the murderer had also been locked. She breathed a sigh of relief and couldn't help but accuse: "Master, he talked to me more than once during his lifetime.

He said that if he died, someone must have killed him!"

"Nonsense!" Xie Changming stood up suddenly and shouted angrily: "The doctors said that my father died of natural causes, don't you just don't want to pay the compensation?" As he spoke, Xie Changming pointed at Lucy with his finger, and then scolded: "You still

As an outsider like you, please stop sowing discord among us. Who doesn’t know that you are coveting my father’s property? If you continue to talk nonsense, I will definitely sue you for spreading rumors and slander!”

Xie Changliang stepped forward to hold Xie Changming and persuaded him: "Brother, don't be angry, listen to what they say first!"

"What's so nice! I think they just want to default on the debt. I don't want the money anymore. Get out of here!" Xie Changjing also cursed.

When Xie Changming heard that his sister actually claimed to give up the insurance money, he became anxious and followed Xie Changliang and said, "Why don't you listen to what they say first!"

Li Andi looked at Chen Chuyao and motioned for her to continue.

"First of all, I have to explain something to everyone!" Chen Chuyao said to several people with understanding: "Originally, we always thought that Mr. Xie Zhijie died due to the worsening of emphysema. We also doubted whether taking it would cause side effects.

It was the drugs that caused the adverse reactions. But we have always ignored the impact of oxygen levels on the elderly."

"Do you mean that my uncle died of suffocation due to insufficient oxygen intake?!" Xie Changliang asked following Chen Chuyao's words.

"Then this must be a good thing this woman has done!" Xie Changming pointed at Lucy again and said loudly: "It must be that she didn't give my dad a good oxygen supply, which is why his condition worsened!"

"It's not what you said at all...!" Lucy defended sadly: "The master was very peaceful before his death, and there was no sign of hypoxia at all!"

"This is our inherent impression. We have always believed that patients usually die of suffocation when they are deprived of oxygen!" Chen Chuyao ignored the arguments of several people and continued: "According to the information learned from the doctor, chronic

Emphysema patients are very sensitive to the amount of oxygen they inhale. Not only will they die of suffocation when the oxygen level is too low, but they will also die of suffocation when the oxygen level is too high!"

"You mean my uncle died because of excessive oxygen content?" Xie Changliang asked in confusion.

"This is impossible!" Lucy heard this and said nervously: "On the day of the incident, I followed the usual procedures to give the owner medicine and oxygen. How could something go wrong!"

Chen Chuyao did not rush to answer the two people's questions, but asked Xie Changjing: "Ms. Xie, how far is your home from Xie Zhijie's home?"

Xie Changjing was stunned for a moment, not knowing what Chen Chuyao meant, but still subconsciously replied: "It takes about 15 minutes to drive!"

Chen Chuyao asked Lucy again: "Do you still remember how long it took Ms. Xie and the doctor to arrive when the old man Xie Zhijie had a problem that day?"

Lucy immediately recalled: "I called the doctor first, and then called these three people one after another. Because the situation was very urgent at the time, I kept my eyes on the time. I remember that after the doctor received the call,

We arrived in about 8 minutes! Ms. Xie was earlier than the doctor, but I can’t remember the specific time!"

"Then I would like to ask Ms. Xie, how did you get there within 8 minutes of the journey that originally took about 15 minutes?" Chen Chuyao asked immediately.

"I...I was...coincidentally drinking coffee at a nearby cafe!" Xie Changjing explained: "I came directly after receiving Lucy's call, so it took only a short time! Is there any problem?"
Chapter completed!