Chapter 237 City-Wide Search

This night, Gao Ya was not the only person who was exposed to live broadcasting. Cen Lian called Wu Qiushan and told them to pay attention to the confidentiality policy with those who assisted in the investigation.

"In fact, we can't stop them from saying anything they really want to say," Tang Hua was very open-minded, "It seems a bit late for us to think of this matter when we get to Gao Ya."

"It's not a matter of alarming the enemy now," Cen Lian said, with the evidence bag in his hand still containing the medicine used by Gao Ya, "Take it back for testing first, and we have to quickly determine how much of these toxic herbs were used."

The car drove all the way back to the Municipal Bureau. The entire building of the inspection department was brightly lit. Some of the extracted evidence was sent back to the Municipal Bureau's inspection department for testing as quickly as possible.

The remaining evidence was sent to several laboratories that cooperated with the police, as well as several medical universities in Yunling Province.

When Cen Lian got off the car, he saw a faint red light on the horizon, and it was almost dawn.

Wu Qiushan came back earlier than him. After saying hello to him, he took the liquid medicine from his hand and went to the laboratory with Yuan Chenxi.

At this moment, no matter whether they were criminal police or professional technicians, as long as they had learned to test in the police academy, they had to help.

"I will also help with the drug test," Lin, a forensic doctor, came back later than them, "We also have a very suspicious person here, and the specific information has been sent to Qu Zihan."

After watching Lin, a forensic doctor, leave, Cen Lian found that only Wang Yuanteng and Qu Zihan were left in the office. Qi Yan and Tang Hua were called to get the surveillance video as soon as they came back, all of which were surveillance near these hospitals.

The suspect has now been basically locked in, and the work left for the support team has shifted from finding the murderer to tracking the murderer.

All the data and information obtained by Qu Zihan have been handed over to the Internet Security Brigade for processing. She is currently compiling all the live broadcast accounts that may be targeted by Zheng Weiheng.

"Next time you recruit auxiliary police, hire an assistant for me," Qu Zihan said weakly after seeing Cen Lian coming back, "I'm just a weak little network security, you are treating me like a Trisolaran!"

"Trisolarans don't have three heads and six arms," ​​Wang Yuanteng reminded silently, "but it's not common for college students studying computing to sign up for auxiliary police."

Qu Zihan waved his hand, indicating that he should stop talking.

"How many accounts have been tracked now?" Cen Lian asked after taking a sip of water.

"Including the two that Sister Lin just sent, there are a total of 23," Qu Zihan's sound of typing on the keyboard was weak, "I'm confirming whether there are any users with the same IP among the viewing users of these 23 accounts."

Cen Lian looked at the time and estimated that there was probably no milk tea at this time, but he could have breakfast.

So he took out his mobile phone and ordered some breakfast, and then began to study where Zheng Weiheng might be hiding now.

Their actions last night were quite high-profile. Zheng Weiheng may have known that they were conducting a dragnet investigation of the herbs he had replaced, so he still couldn't be careless for the rest of the day, because if this plan failed, he might kill people indiscriminately in a fit of rage.

This kind of revenge on society, judging by the number of lives Zheng Weiheng had taken, he was totally capable of it.

He had been hiding in the dark before, but now he probably can't hide anymore.

When Tang Hua came back with the surveillance video, he found that Cen Lian had already started to eat breakfast.

"You are so considerate to tell us not to expect to rest, and to continue to work overtime after breakfast?" Tang Hua asked Cen Lian resignedly while picking up a steamed bun with vegetables.

"Just tell me if you dare to go back and rest today." Cen Lian didn't even raise his head, and concentrated on putting the hard drive that Tang Hua brought back into the computer. "I'll continue to watch the surveillance here, you and Qi Yan help sort out the list of users watching the live broadcast, and find out the ones with a high degree of overlap."

Tang Hua picked up a cup of soy milk, and resigned himself to sitting down with Qi Yan on the left and right of Qu Zihan, looking at the list that had just been spit out from the printer.

"I'll do it on the software here, you just check it." Qu Zihan was very considerate, "Now that technology is advanced, you can just draw a table and use the software to filter it directly."

Cen Lian was the first to open the surveillance of the Hospital of Integrated Traditional Chinese and Western Medicine.

He was almost certain that this was the last stop where Zheng Weiheng poisoned, so the surveillance here might be fruitful.

The short time of synaesthesia made him unable to determine how he got away with the original herbs after these herbs were swapped. From his physical sensation when he switched, the car should have been in the starting state at that time, and he could feel that his body shape was not very stable when he was synaesthetizing.

That means Zheng Weiheng not only replaced the herbs in the warehouse, but also after the car drove out.

However, the way from the Chinese and Western Medicine Hospital to the Herbal Medicine Wholesale Market passes through the Second Ring Road and the Third Ring Road, which are the most congested in Kang'an City. It is very easy for him to get off the car halfway.

In the surveillance video on Wednesday night, Cen Lian saw a familiar truck arriving at the back door of the hospital.

This place is very close to the warehouse. The car stopped in front of the warehouse door not far after entering the hospital. There are three cameras here. Cen Lian found several cameras with different angles and pulled them to the same time.

The truck stopped at the door of the warehouse. Several young people who had just taken off their white coats helped to move bags of Chinese herbal medicines onto the carts under the cameras and then pushed them into the warehouse.

During the whole process, no one was seen except the driver.

Zheng Weiheng was not here.

But how did he know how many medicinal materials were left in the warehouse of this hospital?

Cen Lian recalled the news he learned from Dr. Liu today. Almost all the poisoned medicines can only be used in the next two days. It can be seen that he should have some understanding of the inventory of these hospitals.

"Are the systems of these hospitals easy to be hacked into?" Cen Lian paused the monitoring and turned back to ask Qu Zihan, "It's the provincial hospital, municipal hospital and Chinese and Western medicine combined hospital we have been to."

"Of course it's easy," Qu Zihan said vaguely with half a fried dough stick in his mouth, "Their system is like paper. Do you think someone has hacked into their warehouse management system?"

This guy's reaction speed is indeed fast enough, Cen Lian sighed in his heart, and then confirmed her guess.

"He needs to know the exact remaining amount to determine which medicinal materials he wants to poison, so as to ensure that people will die today." Cen Lian explained.

Today is the day that Zheng Weiheng set for live broadcast killing, so this time is very important to him. The time to replace the medicinal materials cannot be too early or too late.