Caiqi's surprise complicates the case.

There were new doubts in the case that should have been concluded, and Ji Xiu then retrieved Cai Qi's bank card flow records and online chat records.

It can basically be concluded that Cai Qi is indeed only enough to buy a 50 ml dose of heartflower.

But the problem is that this dose can't poison 12 people at all.

There must be other unknown factors in this that led to the poisoning of presbyopia and others.

In the face of his inquiry, Cai Qi was still in a state of depression and could not give any useful clues.

But except for Cai Qi, everyone else on the fishing boat has been poisoned, and the case has reached a bottleneck, and it is impossible to continue the investigation.

Faced with a clueless case, Ji Xiu did not give up, in his previous life, as an amateur mystery novelist, he did not believe in a perfect crime, and then followed the law enforcement officers to the forensic department for questioning.

An in-depth autopsy is ongoing, and no other clues can be provided for the time being.

That night, Lao Hua's son learned the news and rushed to the Law Enforcement Department from Starlight City.

Lao Hua's son is named Hua Xinglong, who is in the renovation business in Starlight City, and when Ji Xiu saw him, he was squatting in the aisle of the Law Enforcement Department, with a desperate expression, obviously unable to believe that his father was gone.

"Uncle Li, how did my dad go?"

Seeing Ji Xiu, Hua Xinglong took the initiative to stand up, with tears still hanging from the corners of his eyes.

"The case is under investigation, you go back and rest first, the body can't be brought back for the time being."

Although he didn't know Hua Xinglong, Ji Xiu could also guess that Lao Hua's son must be very familiar with Li Tan, so he used the tone of an elder to persuade and comfort.

"Uncle Li, who is trying to harm him?" A hint of hatred appeared in Hua Xinglong's eyes.

"I'll let you know when there's a result, go back."

It took a lot of time to persuade Hua Xinglong, who was almost emotionally broken, to go home, and Ji Xiu sat alone in the conference room of the Law Enforcement Department to look through the information.

This part of the information is provided by the Law Enforcement Department, and he now needs to sort out the usual interpersonal relationships of the old man.

Since the dose Cai Qi bought was not enough to cause death, the breakthrough had to be found in Lao Hua's interpersonal relationships, especially Lao Hua's enemies.

The content recorded on the information made Ji Xiu understand why Lao Hua took such good care of Li Tan.

It turned out that Li Tan's parents were Lao Hua's benefactors, and when Lao Hua was poor, it was Li Tan's parents who helped Lao Hua and introduced Lao Hua to work, and even the marriage partner was introduced by Li Tan's parents.

Therefore, Lao Hua's care for Li Tan is actually a kind of repayment.

For the network of old flowers, Ji Xiu really felt a headache.

It can be seen from the description on the information that Lao Hua is almost unscrupulous in order to make money, and he will do everything to abduct and deceive, and he can be the squad leader of Pier 3 by digging into the corner.

So there are a lot of enemies of old flowers.

In the civil disputes recorded in the Law Enforcement Department alone, there are more than a dozen, involving dozens of people.

If you want to know more about whether they have committed a crime, you have to visit and investigate.

Ji Xiu selected two people from the information and prepared to launch an investigation from these two people.

The first person is named Tan Gang, who was the squad leader of the third pier, and has dozens of unloading workers at the pier, and there were many conflicts with Lao Hua because of the conflict of interests, so both of them were imprisoned, and finally Lao Hua robbed Tan Gang's business and the workers who had followed Tan Gang.

The contradiction between the two is irresolvable.

The second person is named Wen Jinlong, who followed Lao Hua for a period of time, and finally was like Cai Qi who was pit out of his family property by Lao Hua through Lao Qian's means, and always held a grudge against Lao Hua, and once attacked Lao Hua with a knife, and finally spent three years in prison, and was just released the year before last.

He also had a motive for committing the crime against Lao Hua.

Of course, it is not excluded that other people on the fishing boat have enmity with outsiders, and Lao Hua is only a victim who is implicated.

Troubleshooting is a lot of work.

After reviewing the information until the next morning, Ji Xiu applied for the cooperation of the Law Enforcement Department and sent people to investigate the two people he had selected.

At noon that day, two law enforcement officers who had gone to investigate returned and provided their latest movements.

Among them, Tan Gang went to Starlight City to live five years ago, and has never returned to Foggy Sea City since then, and has not even paid attention to Lao Hua's recent situation, now he has a happy family, and his two sons are very competitive, so there is no need to risk killing his head to commit a crime.

Although the other Wen Jinlong was imprisoned for three years for attempted murder, the three-year prison sentence seems to have made him let go of his hatred, and now he is working in a source stone field in the D area of the foggy sea, and his co-workers can prove that Wen Jinlong has not left the source stone field this month.

Therefore, the suspicion of Tan Gang and Wen Jinlong can be ruled out.

Ji Xiu had to let the two investigators who had just come back visit and investigate in turn according to the ranking of the suspects on the list he listed, many of them were workers under Lao Hua, and Lao Hua owed them wages that had not been settled, causing a lot of contradictions.

In the meantime, he got a new message.

Vegetables in freezer No. 4 on the fishing boat were detected with concentrated cardiocin.

Concentrated heartflower is a controlled drug, which will not be sold to the outside world, and only 0.01 mg can cause death, Ji Xiu immediately realized that these vegetables were the cause of the poisoning of presbyopia and others.

With doubts, he immediately went to the interrogation room to ask Cai Qi if he knew about the vegetables in the No. 4 freezer that were contaminated with concentrated cardiocin.

After yesterday's interrogation, Cai Qi seemed to have given up hope of living, sitting in the interrogation chair with a haggard expression, his head lowered, his eyes blank, and in the face of Ji Xiu's questioning, he couldn't raise his willingness to cooperate at all.

In this regard, Ji Xiu could only choose to attack the heart.

Looking at Cai Qi's information on the interrogation table, Ji Xiu looked up at Cai Qi:

"Cai Qi, you must feel that your life is ruined, but do you remember that there is an old mother waiting for you to come home?"

Hearing the word mother, a touch of clarity appeared in Cai Qi's dim eyes, and he slowly raised his head:

"My mother?"

"Cai Qi, although you deliberately want to kill Hua Liwei and the others, the dose of poison you gave can't kill them at all, so the crime is not death, at most it is an attempted murder, the minimum is three years, the highest is indefinite, maybe you can go out to see the old mother in your lifetime...... You don't want your old mother to die and not see you for the last time, do you? ”

The lethality of this sentence was extremely great, Cai Qi's lips trembled, and a trace of remorse appeared in his eyes.

"What you have to do now is to fully cooperate with our law enforcement department's investigation, as long as you can find the real culprit, you can get the opportunity to reduce your sentence, and then go home to honor your old mother after you are released from prison, at least before her old man dies."

This time, Cai Qi couldn't hold back at all, and tears kept sliding from the corners of his eyes:

"I ...... I'm fully cooperative, and I'll tell you everything I know. ”

Seeing that Cai Qi was finally willing to cooperate, Ji Xiu immediately struck while the iron was hot and asked:

"Cai Qi, who purchased the vegetables on the fishing boat?"

"It's all purchased by Lao Hua himself."

"Who else has touched this batch of vegetables besides you, or has anyone helped you when you cook?"

"I'm usually the only one in the kitchen on the fishing boat, and there is no one to help me when cooking, so no one should have touched this batch of vegetables." Cai Qi snorted, wiped away his tears, and replied truthfully.

When Ji Xiu heard this, he picked up the pen and wrote down what Cai Qi said on paper, and then looked up at Cai Qi again:

"Who was responsible for transporting this batch of vegetables to the fishing boat at that time?"

"In order to save money, Lao Hua and I are responsible for transporting it to the fishing boat...... By the way, I remember that Lao Hua's son also came to help at that time. ”

When Ji Xiu heard this, he immediately recorded this clue on a piece of paper.

"Anyone else other than the three of you might have touched this batch of vegetables."

Cai Qi heard this, and shook his head after pondering for a long time:

"There's no one else."

Leaving the interrogation room, Ji Xiu immediately applied for the cooperation of law enforcement officers to carry out the investigation, starting from the source of the purchase of vegetables.

In the afternoon of the same day, Ji Xiu got the results of the investigation.

The vegetables were ordered a day in advance, and the vegetables were placed in the No. 1-4 cold storage of the fishing boat, but only the vegetables in the No. 4 cold storage had concentrated cardiacin, which proves that the vegetables were in transit or after being transported to the fishing boat.

Ji Xiu immediately changed the target and began to investigate Lao Hua's son Hua Xinglong.

As a result, Ji Xiu was very surprised by the information obtained, Hua Xinglong's new wife turned out to be an A-level pharmacist, and he was fully capable of providing Hua Xinglong's concentrated heartflower.

This discovery made Hua Xinglong's suspicion aggravated.

For this reason, Ji Xiu retrieved Hua Xinglong's bank card transfer records.

The results obtained allowed Ji Xiu to find a clear direction.

He found that Hua Xinglong's bank card had been transferred to the "Sea Beast Gaming Company" several times.

The company's main business is online fish racing, betta fish, and other types of gambling games.

Hua Xinglong's bank card has been transferred to the bookmaker several times, dating back to 7 years ago.

Seeing this, Ji Xiu can basically make up a conclusion in his brain.

Lao Hua's son, Hua Xinglong, is a veteran gambling dog who has invested a lot of money in gambling over the years.

Thinking in this direction, Ji Xiu suddenly realized one thing.

He never thought about a question, why did Lao Hua become the killer of the black hole organization, and what was he trying his best to make money.

Li Tan chose to become a killer because her daughter was sick and she couldn't pay for the treatment because she ran out of family property.

Then why did Lao Hua embark on this road?

It stands to reason that Lao Hua has also saved a lot of family property over the years, and there is no need to take risks to do the business of killing heads.

But looking at Hua Xinglong's bank card flow, everything was straightened out.

Because he has a gambling dog son, no matter how much money Lao Hua casts, he can't fill this hole.

The flow of the bank card shows that Hua Xinglong transferred 100,000 yuan to the Sea Beast Gaming Company a week ago, and transferred another 2.5 million half a day later, but the money was not transferred back later, so it is likely to be lost again by this gambling dog son.

Following this clue, Ji Xiu immediately retrieved Hua Xinglong's loan and loan records.

The conclusion reached turned the case around.

Hua Xinglong borrowed 2.5 million from Shuguang Bank in the form of a mortgage loan a week ago.

This money, apparently, was used for gambling.

Knowing this, Ji Xiu made up a complete timeline of the crime.