Chapter 408 Arsenic Poisoning, but No Arsenic Compounds

That is muscle spasm.

Yes, after dissecting Li Fenglin's limbs, traces of muscle spasm were found.

Muscle spasm is difficult to see from the outside.

Especially Fenglin died of drowning.

The characteristics of drowning death will cause rigor mortis to appear earlier.

After rigor mortis appears, the body gradually becomes stiff and the muscles become hardened.

As long as one or two hours pass, the whole body will be like an iron plate.

In this way, muscle spasm is difficult to detect from the outside.

Only after dissection can further confirmation be made.

However, muscle spasm is only the direct cause of Li Fenglin's drowning death.

But the root cause of muscle spasm is that Li Fenglin has chronic arsenic poisoning.

Therefore, Li Fenglin's death was not an accident at all, but someone deliberately murdered.

Since it has been confirmed that Li Fenglin's death was not an accident, but a deliberate murder, the next direction of the case is much simpler.

Since Li Fenglin is suffering from chronic arsenic poisoning, as long as he starts from the people around him, he can find clues.

Of course, Li Hong did not let go of the investigation at the scene at that time.

Li Fenglin went swimming after having lunch with friends outside at noon that day.

But he did not drink alcohol during the meal.

Li Hong investigated the restaurant where Li Fenglin had lunch, and several friends who had lunch with Li Fenglin were also interrogated.

There were four people eating with Li Fenglin at that time, and the other four people had no other physical conditions or reactions, so the possibility of food poisoning was ruled out.

Later, Li Fenglin drank a bottle of water in Yongsheng Swimming Pool.

Li Hong tested all the drinks in the vending machine at that time and did not find arsenic.

The possibility of drinking water poisoning was also ruled out.

As for other people poisoning...

This possibility is also very small.

When Li Fenglin was swimming that day, from the moment he entered the swimming pool, except for changing his swimsuit in the locker room, he was always under surveillance.

He only had a brief contact with swimming coach Zhang Hong in the middle.

But the two sides did not have physical contact at that time, and Zhang Hong was not found to have any special behavior under surveillance.

It can be said that Li Hong's investigation at that time had ruled out the possibility of Li Fenglin being poisoned in the swimming pool.

The rest is easy.

According to the autopsy results, Li Fenglin had been suffering from chronic arsenic poisoning for a long time, at least a year.

Whoever was responsible for Li Fenglin's diet and daily life and had the closest relationship with him during the past year could be the murderer of the poison.

For example, Li Fenglin's wife Zhao Linmeng.

Li Fenglin and Zhao Linmeng were remarried.

When Li Fenglin died, they had been married for less than two years.

Moreover, when Li Fengming worked in coal mines in other provinces, he had accumulated a lot of wealth.

Zhao Linmeng married Li Fenglin, who was 49 years old at the age of 26.

Why?

For love?

Haha.

Li Fenglin is a typical middle-aged greasy uncle.

No hair, big belly, and big yellow teeth.

Did not graduate from elementary school, spoke rudely, and had a bad temper.

What about Zhao Linmeng?

She was beautiful and tall, and originally worked in the massage parlor opened by Li Fenglin.

If you say that Zhao Linmeng and Li Fenglin got married for love, I'm afraid no one would believe it.

So, if Li Fenglin died, then Zhao Linmeng would be the biggest beneficiary.

However, something strange happened.

Li Fenglin's autopsy report showed that he had various characteristics of arsenic poisoning.

But the autopsy detective of the first detective team did not detect any arsenic in Li Fenglin's body.

This is so weird.

When Li Hong knew that Li Fenglin's body had the characteristics of chronic arsenic poisoning, he even figured out the direction of the case.

Zhao Linmeng is the first suspect.

But now you tell me that no arsenic was detected in Li Fenglin's body.

What the hell does this mean?

Did Li Fenglin metabolize all the arsenic in his body?

This is impossible.

Arsenic poisoning can only be caused by inorganic arsenic.

For example, arsenic trisulfide.

Once this inorganic substance enters the body, it will be deposited in the body and cannot be metabolized.

Otherwise, if it can be metabolized, it means that the body cannot be poisoned.

Later, the Liancheng Detective Team even invited experts from the Liao Province Detective Brigade to examine Li Fenglin's body.

However, the results were the same.

No arsenic.

Li Fenglin's body was clean and there was no arsenic residue at all.

Li Hong even conducted a detailed investigation of all of Zhao Linmeng's shopping records.

Again, nothing was found.

In this way, the case was deposited and became an unsolved case.

Li Fenglin's body was not cremated that year and is still frozen in the funeral home.

Chen Yan has studied the entire file three times.

Chen Yan carefully analyzed every word and every paragraph.

Along with the file, there are all the surveillance videos of Li Fenglin in Yongsheng Swimming Pool at that time.

Chen Yan has opened the visual gene lock and carefully watched the video materials twice.

It can be said that every scene of Li Fenglin from entering Yongsheng Swimming Pool to his death is in Chen Yan's mind.

During the whole process, Li Fenglin was not in the surveillance video only when he entered the locker room to change his swimsuit.

Could it be that someone tampered with it at that time?

However, there were only seven people swimming in the swimming pool at that time.

Li Fenglin was the last one to come in.

In addition to Li Fenglin, there were three men and three women in the seven people.

Needless to say, the women had separate dressing rooms.

The other three men entered the swimming pool at least half an hour earlier than Li Fenglin.

They had no direct contact with Li Fenglin from beginning to end.

In the surveillance footage, Chen Yan carefully analyzed the expressions and eyes of each person.

The three men who were swimming never looked at Li Fenglin.

Two of the men watched a young girl swimming from time to time.

As for swimming coach Zhang Hong and lifeguard Yang Linsheng...

The probability of the two having problems is not too high.

Although Yang Linsheng got off the observation bench to drink a glass of water when Li Fenglin was drowning.

However, it was also lifeguard Yang Linsheng who first discovered that Li Fenglin had problems.

In the subsequent rescue process, Yang Linsheng and Zhang Hong's eyes were pure.

The cardiopulmonary resuscitation was very attentive and standard.

Obviously professionally trained.

From the time Li Fenglin entered the swimming pool to the time Li Hong led the team to the police, Chen Yan did not find any suspicious places.

Shaking his head, Chen Yan closed the file and picked up the phone.

"Captain Liu, are you free this afternoon?"

It was Liu Qingshan on the other end of the phone.

"Nothing, what's the matter, Deputy Captain Chen, do you have any instructions?"

During this part of the phone call, Chen Yan smiled: "I don't have any instructions from you."

"These two days I'm looking at a drowning case in the team three years ago."

"I really don't find anything suspicious in the file."

"In the afternoon, let's go to the funeral home to take a look?"

Drowning case three years ago?

Liu Qingshan's expression moved slightly.

Of course he knew about this case.

Not only that, Liu Qingshan had also studied the case file many times.

He was very clear about the whole case.

However, as Chen Yan said, there was nothing suspicious in the file.

As for Li Fenglin's body, Liu Qingshan had seen it when he first took office in the Detective Squadron 1.

"Okay, I'll pick you up later."

After hanging up the phone, Liu Qingshan packed up, took his work notes, and went out to pick up Chen Yan.

An hour later.

North Suburb Funeral Home.

Chen Yan saw Li Fenglin's body.