"Senior Brother Gu, is this thing very powerful?" Lu Weiwei rushed over from behind, took Gu Chen's mobile phone and looked at it, and said in a daze: "Yes...... Radioactive?"

Gu Chen nodded and responded: "Cobalt-60 has extremely strong radiation properties, which can cause hair loss, which can seriously damage the cells and tissues in the human blood, cause a decrease in white blood cells, and cause blood diseases. ”

"For example, aplastic disorder anemia, serious can cause people to suffer from leukemia and even death, and the pendant that Wang Chao gave to Hao Ming does contain cobalt-60, and when there are cobalt-60 radioactive elements in the working environment, you must wear special protective clothing and wear a radiation dose card. ”

Lu Weiwei and Officer Wang were stunned at that time, and the two looked at each other in disbelief.

"Gu ...... Gu Chen, this thing is really so powerful, isn't that very lethal?" Officer Wang had also heard of this for the first time.

But for Gu Chen, he seems to have a lot of research on cobalt-60, and it is no wonder that Gu Chen likes to use his off-duty time to delve into various academic studies.

"Senior Brother Wang, this thing is not a joke. Gu Chen looked at Officer Wang and Lu Weiwei beside him, and said in a serious tone:

"More than 20 years ago, a farmer who used to work in a city in the north was working at the dormitory site of an environmental testing station, and he picked up a shiny little thing and put it in his jacket pocket. ”

A few hours later, he developed symptoms such as nausea and vomiting, and ten days later, he died inexplicably. ”

Hearing this, Lu Weiwei couldn't help but feel furious and said, "This ...... Isn't this very similar to Hao Ming's symptoms?"

"That's right. Gu Chen nodded and continued: "A few days later, his father and younger brother, who took care of him during his illness, also died of the same illness, and his wife was also very ill. ”

"Later, after the investigation of medical workers, the real cause was found, and that shiny little thing was discarded cobalt-60, with a radioactive intensity of up to 10*3.7x1010 bakers!"

Lu Weiwei was stunned for a moment, and said to herself weakly: "Although I don't know what standard this is, I feel so powerful." ”

"The jade pendant that Wang Chao sent to Hao Ming may not be very radiant, but if you wear it by your side for many years, you are committing chronic suicide. Gu Chen once again set his eyes on Wang Chao beside him.

Wang Chao was stunned for a moment......

With an innocent look, like a victim, he said weakly: "You...... I don't even know what this cobalt-60 is? I'm just an e-commerce company. ”

Wang Chao's sensational speech just now did win some sympathy from Lu Weiwei.

But the evidence doesn't lie, Gu Chen asked Forensic Doctor Liu to make a test, and it was clear that there were radioactive elements.

At present, Forensic Doctor Liu is processing the pendant, and informed Gu Chen of the situation in the technical department.

In fact, Gu Chen had doubts about Wang Chao before, and concluded that Wang Chao was the murderer, but he did not have the test results of Forensic Doctor Liu on the pendant at that time, so he could only come over to investigate first.

Now that the test results are out, Gu Chen has a good reason to take Wang Chao away for investigation, so he said:

"Wang Chao, you don't have to pretend to be innocent, even if what you just said is true, Hao Ming is indeed not a decent gentleman, but if you kill someone, no one can save you. ”

"That's right, even if you have 10,000 reasons, it won't hold water. Lu Weiwei said to look left and right, and said in a low voice: "Senior Brother Gu, then we were in the morgue at the time, and we also had contact with Hao Ming, so we ......."

"Short exposure shouldn't be a big problem. Gu Chen said.

"Oh. Lu Weiwei was stunned for a moment and said, "But I think I still have to go for a physical examination first." ”

"yes, this thing is not a joke, it's better to be careful, it's better to be careful. ”

Officer Wang paused, and seeing Gu Chen's indifferent expression, he said again: "You can ask for leave for this test, if you want to rest, you can apply for a few days of recuperation at home." ”

Gu Chen let out an "oh", but didn't respond to anything.

The damage of cobalt-60 is indeed very large, and this is documented in the relevant archives.

However, the probability of such cases is small, and many people will not pay attention to it.

But this clue is very timely for Gu Chen......

"Let's take Wang Chao back to investigate first. Gu Chen habitually stepped forward and took out the handcuffs.

Wang Chao panicked at that time and hurriedly took a few steps back.

"Don't pretend. Gu Chen showed the test report sent by Forensic Doctor Liu to his mobile phone and showed it to Wang Chao: "Don't tell me, your ancestral treasure will have cobalt-60, if you have anything to appeal, come back to the bureau with me." ”

None of you are stupid.

It's pretended, but after being pierced, it doesn't make any sense to pretend again.

"Gu ...... Officer Gu, I have a reluctant request. Wang Chao suddenly changed his attitude.

in the room.

Gu Chen, Officer Wang and Lu Weiwei, all eyes were on Wang Chao, thinking about what new excuse this guy wanted to find?

Wang Chao's wonderful sensationalism just now, although it deceived Lu Weiwei into a few tears, but one yard is one yard.

I can't stop you from being arrested just because you're pitiful......

The police have always been principled in handling cases.

Gu Chen hesitated for a moment and asked, "What new tricks do you want to play?"

"No, I ......" Wang Chao said to his mouth, but it was difficult to speak, and he said for a long time: "Can you not wear handcuffs, or can you really ask for clothes on your hands?"

Seeing that Gu Chen, Officer Wang, and Lu Weiwei did not respond, Wang Chao said again: "I...... I want to leave the company with dignity. ”

"Yes. Gu Chen quickly agreed to Wang Chao's request and said, "But please remember that you are a man with your conscience, and you know best what you have done." ”

Wang Chao nodded: "Thank you, Officer Gu, thank you." ”

Wang Chao was taken away.

He was not handcuffed.

But Wang Chao knew that there was no good fruit to eat when he entered the sub-bureau.

The police have enough evidence, but they don't have a life-saving hole card in their hands.

Four o'clock in the afternoon.

Gu Chen and Lu Weiwei came to the three groups of offices with the transcript.

Since Gu Chen became a regular, Officer Wang did not sit in person during some interrogations, and gave the opportunity to Gu Chen and Lu Weiwei.

First, Gu Chen can fully enter the state, and secondly, he also wants to delegate power and let Gu Chen and Lu Weiwei have more experience in interrogation.

In fact, there is a deep reason, when Officer Wang has the scene of Gu Chen's interrogation, he always has a feeling of being marginalized.

It's also embarrassing to be there.

In the face of sufficient evidence, the interrogation work is relatively easy, and it is not necessary for Officer Wang to come out in person?

"How is it? Is there a result?" Seeing the two standing in front of him, Officer Wang hurriedly asked.

"With Senior Brother Gu here, your old king will put a hundred hearts. Lu Weiwei showed some smiles, full of confidence, which has said it all.

Wang Chao confessed. Gu Chen was not as subtle as Lu Weiwei, and said directly: "Wang Chao has already explained the fact that he used radioactive materials to poison Hao Ming. ”

The blow that Hao Ming brought to Wang Chao was huge, so Wang Chao endured it again and again, he didn't plan to continue to be squeezed and betrayed by Hao Ming, so through a special way, he got this jade pendant with radioactive elements, and wanted to get rid of Hao Ming quietly and get rid of this opponent who was a great threat to him. ”

Officer Wang's expression was as usual.

This result was also something he could guess between him according to Gu Chen's clues.

Officer Wang could fully feel the malice from Wang Chao......

While complaining to the police, telling about his various oppressions and grievances by Hao Ming, he was doing the business of poisoning others.

Wang Chao poisoned Hao Ming, that is a definite fact......

"Just now, Forensic Doctor Liu called and asked everyone who has been in contact with Hao Ming's body to go to the hospital for a check-up to see if there is any harm to our body. Officer Wang said.

"All?" asked Lou Weiwei.

"Yes, including Ding Liang and Huang Zunlong, they all have to go, safety first. ”

Gu Chen asked rhetorically, "Then what did Forensic Doctor Liu say? He also participated in the test." ”

"You may have to go, it's all arranged. Officer Wang pursed his lips, wanting to complain about the seriousness of the problem, but he felt that it was not appropriate.

The appearance of cobalt-60, especially the death, may cause a certain amount of panic at this time, but it is not too stressful for Gu Chen.

Energy drinks can boost immunity.

But others are not easy to say.

If there is no medical examination in the hospital system, there may be symptoms of nausea and vomiting, but fortunately, at present, there are no special accidents for everyone.

But in Gu Chen's view, finding the source is the top priority.

"Senior Brother Wang, we'll talk about the physical examination later, we should go and arrest the person who provided Wang Chao with a cobalt-60 jade pendant. Gu Chen said.

Officer Wang just breathed a sigh of relief, and suddenly became nervous again: "You mean...... This Wang Chao has already confessed?"

"That's right. Lu Weiwei added: "Wang Chao also asked someone to get this dangerous item, which is obviously specially sold, if you don't catch this guy who sells cobalt, if more cobalt-60 is allowed to flow out of the market, it will be over." ”

Officer Wang nodded frequently.

Cobalt-60 can be disguised as a pendant, if no one is specifically processing, Officer Wang will definitely not believe it.

"Have you found a seller?" asked Officer Wang.

Gu Chen opened the transcript and said, "The guy who sold something like Wang Chao lives in a real estate on the outskirts of Jiangnan City, and Wang Chao has already explained the specific location. ”

"Alright, let's go now, don't let this guy run away. ”

Some practitioners who violate their conscience will take advantage of the small convenience of their work to sell such things to outsiders to make a fortune.

Of course, the police are obliged to bring them to justice.

Outside the suspect's residential area, Gu Chen parked the car under a big tree.

At this moment, Officer Wang also received a message from a colleague in the substation.

"This person known as Brother Long is called Zhang Tianlong. Officer Wang showed the suspect's information to Gu Chen and Lu Weiwei: "I am currently unemployed, I used to work in several large companies, and I was later fired for theft." ”

"Habitual thieves. Lu Weiwei also guessed eight or nine.

"That's right, this guy steals almost everything, I think this cobalt-60, he also stole it inside the company. ”

"He's still a technician?" Gu Chen was also quite surprised when he saw Zhang Tianlong's information: "No wonder he is quite experienced in the preservation of cobalt-60. ”

"Senior Brother Gu, although Wang Chao explained Zhang Tianlong's specific residence, we also have to be careful, this guy has a criminal record. Lu Weiwei took the police equipment and reminded Gu Chen to be careful.

"Don't be nervous. Officer Wang was already familiar with Lu Weiwei's style, and said in surprise: "You will all follow me later, let's catch turtles in an urn today." ”

In the community, Lu Weiwei first came to the periphery of Zhang Tianlong's unit to carefully observe whether Zhang Tianlong was in and out.

Gu Chen and Officer Wang went to the community monitoring room to retrieve Zhang Tianlong's entry into the community.

"Sure enough, at home. ”

Gu Chen thought about it carefully, thought that Zhang Tianlong's house was rented, and asked the security uncle, "Does the landlord also live in this community?"

"That's right, this landlord has two houses, one for him and the other for himself. Uncle Security said.

"Is there a spare key?" said Officer Wang.

Gu Chen took the initiative to say: "Senior Brother Wang, you and Senior Sister Lu will go and keep an eye first, I'll go get the spare key, and let's gather downstairs." ”

"Good. "The two have a clear division of labor in the security room.

But Officer Wang was still cautious and did not startle the snake.

First of all, it is not clear whether he is the only one in the suite where Zhang Tianlong lives?

If there are two people, or more, then he and Lu Weiwei will definitely be unable to resist.

According to the principle of three to one for suspects by the police, in fact, the conditions for arrest are not available now.

But with the addition of Gu Chen, this kind of numerical advantage can still be shown to some extent.

Twenty minutes later, Gu Chen took the key given by the landlord and joined Officer Wang and Lu Weiwei downstairs, and the three of them came to Zhang Tianlong's house together.

The three men took batons and handcuffs in their hands,

Officer Wang said, "Knock on the door." ”

Lu Weiwei said "um", stepped forward and knocked on the door three times: "Is anyone at home?"

There was no answer in the room, and there was no sound.

Lu Weiwei continued to knock on the door, but there was no answer in the room.

"Shouldn't you be at home?" Lu Weiwei turned to look at Officer Wang and Gu Chen behind her.

"Probably not, the monitoring shows that Zhang Tianlong has not gone out since he returned home at noon, and he must still be inside. Officer Wang was very sure.

There is no problem with the surveillance footage, which can only show that Zhang Tianlong seems to have felt threatened, so he closed the door.

"I'll come. Gu Chen directly took out the key and said, "I can only use the spare key to open it, step back." ”

Each of the three has its own ......

At the moment when Gu Chen turned on the law enforcement recorder and opened the door with the key, Officer Wang took the lead and rushed into the house first, followed by Lu Weiwei and Gu Chen.

The three of them blocked the door of a room in the living room, and then to everyone's surprise, they saw that the room was in a mess, but there was no trace of Zhang Tianlong.

"Search!"

Lu Weiwei stood at the door, and Officer Wang and Gu Chen were the first to enter the first room.

A boy who was just over two years old was sleeping peacefully in a small bed.

"How...... Why are there still children?" Officer Wang was stunned for a moment, and quickly looked left and right.

"No one. Gu Chen didn't think much about it, and directly exited the room and came to the second master bedroom.

Like the first room, there is still no trace of Zhang Tianlong.

Gu Chen then quickly checked the kitchen and toilet, as well as the corners of the balcony, but Zhang Tianlong was still nowhere to be seen.

"Could it be hidden in the closet?" said Ms. Lu, who was standing in the living room.

"See. Gu Chen held the baton in his hand, cautiously walked to the wardrobe, opened it in turn, but still found nothing.

At this time, Gu Chen accidentally found that under the big bed, there were some traces of dust rubbing, and he immediately squatted down, looked at the gray-faced Zhang Tianlong, and cowered at this time, and couldn't help laughing: "Come out Zhang Tianlong?"

Zhang Tianlong turned his head to look at Gu Chen, was stunned for a moment, and continued to retreat half a section under the bed.

Officer Wang and Lu Weiwei, who heard the movement, also rushed to support one after another.

"Haha, why did this guy hide from the bed?" Lu Weiwei took out the handcuffs and said, "Zhang Tianlong, if you are a man, you will come out obediently and hide under the bed."

"You...... Who are you? Why are you arresting me?" Zhang Tianlong was panicked at the moment, and the whole person was lying under the bed and couldn't come out.

Officer Wang smiled and said, "Then what are you hiding? ”

"You...... You are trespassing, and you are the ones who should go out. Zhang Tianlong began to speak incoherently.

No matter how Officer Wang and Lu Weiwei warned, or even reached out to pull Zhang Tianlong, Zhang Tianlong had no intention of crawling out from under the bed.

Even resisting vigorously, Officer Wang's hands were scratched several times, and he was also angry at the moment.

"Hey, this guy is a monkey, right? scratch me?" Officer Wang glared, put away his equipment, and said, "I don't believe I can't cure you." ”

Then he looked at Gu Chen and Lu Weiwei and said, "No way, let's remove the bed board." ”

"Okay. ”

"Listen to you. ”

Lu Weiwei and Gu Chen stood by the bed and threw the cup to the side.

Then, Officer Wang hammered hard, slightly cocking the bed board, and Gu Chen and Lu Weiwei moved the bed board away again.

Seeing that there was no cover, Zhang Tianlong panicked and hurriedly said, "Don't ...... Don't tear it down, I'm ...... I'm out, I'm out. ”

"Hurry up. Officer Wang said angrily: "Don't force me to do it. ”

"You...... Get out of the way and let me out. Zhang Tianlong was also frightened, and the whole person was nervous.

Seeing several policemen take a step back, Zhang Tianlong slowly crawled out of the bed, and at the moment when Lu Weiwei was about to take out the handcuffs, he suddenly kicked his hind legs, pushed Lu Weiwei away, and tried to escape again.

As a result, Gu Chen grabbed the collar and directly fell over the shoulder, buttoning Zhang Tianlong to the ground.

"Wow. Zhang Tianlong screamed.

Lu Weiwei was not idle, she sat directly on Zhang Tianlong's legs, pulled her legs back, and Zhang Tianlong let out a scream like a pig again.

"Dare to push me Jiangnan Lu Weiwei, looking for death, right?" Lu Weiwei clasped Zhang Tianlong's hands back, and with a set of skillful arrest actions, the handcuffs were firmly locked in Zhang Tianlong's hands.

At the same time as the three of them were arrested, the movement was too intense and too big.

The boy who was sleeping soundly in the small room suddenly ran out of the room barefoot.

Seeing Zhang Tianlong being detained on the ground by three policemen, the little boy was suddenly stunned, suddenly pouted, and cried.

"Why did he wake up all of a sudden?" Officer Wang was also quite surprised.

"Oops, scared the child!" Lu Weiwei also regretted that she had used too much force just now.

Gu Chen stood up, hurriedly walked to the little boy's side, picked him up, and coaxed: "It's okay, it's okay, it's okay, it's going to make a movie!"