Compared with An Ruqiao's temporary relaxation, Xie Jingchen was still busy flying.

Xie Jingchen sent a message to Xiao You in the team early in the morning, asking her and the other three young men to pay more attention to An Ruqiao's movements when he was away, and didn't say much else.

After the incident, Xie Jingchen went to cooperate with the follow-up arrest work.

Liu Zhiting can hide, and he has not found any trace of him since he was identified yesterday. No, Liu Zhi has changed sexuality, and now it should be "her".

Although Liu Zhi had sex reassignment surgery, she did not go to the public security organ to change her gender information, so when she checked before, the information showed that he was male.

What is certain is that Liu Zhi does not have real estate in his own name, and if he rents a house, he may not have his real name, and he may not have registered with the public security department after his real name.

In the past few days, she has not been to all the places that require her real name.

Didn't buy any tickets for public transport, didn't have a car in her name, and after asking several car rental companies, I learned that she didn't rent a car either.

Liu Zhi's friends and former colleagues also asked, but no one lent her a car.

In this case, the probability of the people is still in the city.

If it is in the city...... Where will it be?

The police in K City found that Liu Zhi assumed the name Liu Zhi after changing his sex, worked as a cleaning staff for a period of time, repaired sewers part-time, and worked in Zhouyang's company.

When she went to work for Zhou Yang's company, Zhou Yang was in charge of the demolition and construction of the Lakeside Park Resort.

Liu Zhi worked at Lakeside Park Resort for two years and was also responsible for repairing the sewers there, so he was familiar with the topography of the crime site, especially the underground plumbing.

Zhou Yang and Liu Zhi should know each other.

At that time, when Zhou Yang kidnapped An Ruqiao, he should have been preparing to escape from the underground passage there, but I don't know if he called someone to answer, or if the person who answered was Liu Zhi.

The lakeside resort was closely guarded, and while being wanted and searched in the whole area, Xie Jingchen, Wang Zixian and Sun Wu guessed Liu Zhi's movements together.

It has been basically determined that Liu Zhi has two lives, Zhou Yang and Fang Ling. Moreover, all kinds of indications show that Liu Zhi is more meticulous in logic, has strong anti-investigation capabilities, has clear goals, and is good at camouflage.

Now there are roughly two directions.

One, Liu Zhi tried to escape or hide. Highway intersections and national and provincial highways have been blocked, and they are being investigated one by one. Underground plumbing facilities also need attention. At the same time, we will keep close contact with the masses and use bonuses to encourage reporting.

Second, Liu Zhi has the next step.

Xie Jingchen had guessed before that the person who killed Fang Ling and Zhou Yang and the person who killed Professor Pei's family might be the same person.

If it is a serial murder case, the murderer's motive is obvious, that is, he wants to kill all the people related to the drug chain.

Under this motivation, there is still one more goal to live now, and that is Su Ye. Therefore, Su Ye also needs to be closely monitored and protected.

It was their dereliction of duty that they failed to protect Fang Ling before and let Fang Ling die in the hospital. This time, no matter how much Su Ye died, he couldn't let him die.

If Su Ye is guilty, then he should be tried by the law, instead of being murdered outside the law.

Everyone acted separately, and Xie Jingchen took a team of people to monitor Su Ye.

In addition to guarding against the possible Liu Zhi, Xie Jingchen also wanted to check this Su Ye well.

There are many doubts about Su Ye.

Xie Jingchen suspected that Su Ye killed Professor Pei.

There are two major doubts about the death of Professor Pei, first, after Professor Pei's death, there are still people claiming to be Professor Pei every week and using his voice to call home. Second, Professor Pei is very afraid of water, and if it weren't for someone close to him and trusted, there would be no chance for him to drown.

These two major suspicions make the case tend to be committed by an acquaintance, and the perpetrator must be someone whom Professor Pei trusts very much.

Su Ye is a student of Professor Pei, and has studied under Professor Pei for almost ten years, which is about the same as half a son. He and Professor Pei are familiar enough, both trusted by Professor Pei and have enough conditions to imitate Pei

The professor does not have the illusion of death.

However, if Su Ye killed Professor Pei, there is no evidence, and there is no motive. Therefore, even if Su Ye's conditions for committing the crime are the most sufficient, he cannot directly draw a conclusion.

In addition to Professor Pei's death, there is another very important thing that is also related to Su Ye, that is, RL's big move in K City.

An Ruqiao told Xie Jingchen everything he knew about the relationship between Zhou Yang, Fang Ling, Su Ye and RL.

When Zhou Yang died, he told An Ruqiao that he would use the latest news of RL in K City to exchange An Ruqiao for helping to take Fang Ling out.

This "excerpt" should be talking about the murder of Liu Hong and Sun Guiying.

If An Ruqiao testified that Zhou Yang admitted that he had killed Liu Hong and Sun Guiying alone, Fang Ling might indeed be exonerated.

However, An Ruqiao didn't get the news, and she didn't want to give false testimony.

As for An Ruqiao's lack of delvey, the latest news of RL in K City, Xie Jingchen has a general guess direction.

It is now known that the people in K City and RL are Professor Pei, Su Ye, Zhou Yang and Fang Ling. All of them are people involved in the drug industry chain.

Coupled with the drug sales of Lin Ruirui and Fang Ling, the sale of addictive and hallucinogenic drugs to the outside world, and the spread of the business network, it is easy to think that RL's big move is related to drugs.

RL's nerve direction drugs have been studied for many years, and there should be quite a few finished products.

Could it be that it is to put drugs into the market?

Illegal drug trading continues to be banned. In addition to drugs/products, there will also be drugs such as mystery/female dry drugs and illegal aphrodisiacs circulating in the black market.

The "black market" here does not refer to a fixed place or person, but to an underground business that is not visible, and the sales method is usually from person to person, and is commonly found in bars, discotheques and other places.

Criminals will call those drugs "good" and will package them with harmless and nice names, promoting only the biggest selling point of the drug, not mentioning its side effects.

These illegal drugs are as profitable as drugs/products, and the wealth is attractive, and for the sake of these interests, many lawbreakers go to speculation.

Xie Jingchen told Sun Wu and Wang Zixian about his speculation, and although Sun Wu did not participate in the investigation of RL-related cases, he immediately realized the seriousness of the problem.

If those drugs can affect people's emotions and are addictive and hallucinogenic once they enter the market, they will multiply the crime rate in K-City and increase the number of offenders and victims.

Be sure to plan ahead.

After the division of labor was properly established, Xie Jingchen took people to the Pharmaceutical University.

Not everyone went to spy on Su Ye up close, and a team of people scattered around the school to observe if there were any suspicious people.

Among this team, there was the policeman who was guarding outside Fang Ling's ward that day, Xiao Wu.