After Gu Chen identified the two biggest suspects, he started to take the next step.
All the whereabouts of the two people that night were investigated one by one.
It can be said that Zhao Mingming was poisoned within 27 minutes, and it is basically certain that someone deliberately planned it.
But there are two options before us. One is to call Zhang Wen and Han Wenfeng to the police station for questioning. This is the basic operation. The other is not to alert the snake first, but to conduct a relevant investigation into the previous whereabouts of the two.
Later, the summons was sent again.
Apparently everyone agrees with the latter...
"Old Ding, I have to trouble you to make another trip to see the surveillance video of Zhang Wen and Han Wenfeng." Officer Wang held the investigation report handed over by Gu Chen and turned to Officer Ding beside him.
"I have to run an errand, right?" Officer Ding asked abruptly, expecting Officer Wang to do this, and said: "Okay, anyway, the coffee in the dispatch room is good, so it doesn't hurt to drink it."
Gu Chen and Lu Weiwei both turned around and saw Officer Ding running there non-stop, holding an oversized thermos cup in his hand.
"Old Ding is so unprofitable that he can't afford to go early!" Lu Weiwei smiled and quickly looked at her thermos cup, thinking that she could also decorate it.
"Gu Chen, are the two suspects you mentioned reliable?" Officer Wang had more questions.
After all, when they woke up, Gu Chen and Lu Weiwei had already investigated everything that needed to be investigated.
This is the result that Officer Wang most hopes to see...
"Zhang Wen and Zhao Mingming should have the most direct conflict, because the opportunity to perform on the same stage with John Lauer originally belonged to Zhang Wen, who was more skilled, but Zhao Mingming's father and his teacher Wang Dewen gave this opportunity to Zhao Mingming
, so the person most likely to hate Zhao Mingming should be Zhang Wen."
Gu Chen compiled the information he got from Zhao's father into data, and concluded that the person with the most motive for murder is Zhang Wen.
"I also agree with Junior Brother Gu's judgment." Lu Weiwei couldn't help but interjected: "Everyone knows that being able to perform on the same stage with the world's top violinist John Lauer is a rare opportunity, especially for young people.
Musicians have a high value in establishing their reputation, and this kind of competition is quite fierce."
"Furthermore, when Wang Dewen knew that Zhao Mingming's skills were not as good as Zhang Wen's, he still put Zhao Mingming, who was slightly less skilled, on the stage. This explains the problem."
Gu Chen also wrote the names of the two people on the title board and said: "In this way, Zhang Wen must have a grudge. The three feet of ice did not freeze in a day. The conflict between the two has been going on for a long time."
Later, Gu Chen showed the video of the two people fighting each other in the corridor to Officer Wang: "Senior Brother Wang, look, the two of them are in a fierce position, just talking trash can make me angry."
long time."
"Haha, these two guys are really interesting." Officer Wang was also amused by the video of the two arguing, and asked casually: "What about Han Wenfeng? What is the basis?"
"He was beaten by Zhao Mingming, who said he was neither a man nor a woman." Gu Chen said.
"In other words, these two people have a long-standing feud?" Officer Wang asked.
"That's right, at least they will dislike each other when they meet and say bad things about each other." Gu Chen hesitated for a moment and then said: "But this kind of grudge will not develop to the stage of poisoning. After all, we speak Korean.
Zhao Mingming is not the only person Feng Niang is angry with, I think Zhang Wen needs to investigate carefully."
"I agree too." Lu Weiwei agreed again: "Zhang Wen's family background has just gone from peak to trough, and the family is still in debt."
"Think about it, everyone, before I was a rich man, and when I was studying under Wang Dewen with these kids from rich families, we had a balanced relationship."
"But suddenly one day, my family was in a state of decline, and I couldn't even pay the tuition fee to the teacher. In the end, I had no choice but to become a little assistant under the pity of the teacher. I didn't even get the performance opportunity that should have been my own.
They were all ruthlessly taken away."
"This is the saddest and most difficult time for people to accept it. After all, if I can seize this opportunity to perform on the same stage with the world's top violinist John Lauer, maybe I will become famous and gain both fame and fortune.
.”
"At this time, Zhang Wen, who had hoped to make a comeback, was ready for his glorious moment, but Zhao Mingming happened to appear in the middle and ruthlessly took away the opportunity that originally belonged to him."
"The most terrible thing is that this is still my mortal enemy. Can this make Zhang Wen calm down? Anyway, if this kind of thing happened to me, maybe I wouldn't be able to calm down."
Lu Weiwei talked a lot, analyzing various reasonings, and Officer Wang was stunned for a while.
However, Officer Wang did not know that these were the exact words Lu Weiwei heard Gu Chen say on her way back to Furong Police Station.
"Okay, Lu Weiwei." Officer Wang said in surprise: "Your amazing reasoning really impresses me."
"You can always make some progress by following Junior Brother Gu in handling cases." Lu Weiwei was not greedy for credit, and she had to mention Gu Chen at the critical moment.
Not long after, Officer Ding, who went to the dispatch room to check the surveillance, also came back.
The hot coffee in the thermos cup was still steaming, and the fragrant smell of coffee made Lu Weiwei sniff her nose: "Old Ding, have you tried this coffee?"
"Not yet, I'm going to drink some later."
"Okay, pour me some." Lu Weiwei pursed her tongue like a greedy cat.
While pouring coffee generously, Officer Ding asked Lu Weiwei doubtfully: "I mean, Weiwei, you are so greedy. When you were a kid, could a lollipop trick you away?"
"Yeah." Lu Weiwei took a sip of coffee and said with a smile: "I'm the best person to cheat, especially as a girlfriend."
After finishing speaking, Lu Weiwei glanced at Gu Chen secretly.
At this moment, Gu Chen had already used the video copied by Officer Ding to check Zhang Wen's specific movements yesterday.
This time Gu Chen did not follow the chronological order, but started playing from the time closest to Zhao Mingming's poisoning.
First video.
It was also the scene where Zhang Wen and Zhao Mingming were talking trash in the channel. Gu Chen directly clicked to exit and then entered the second video.
In the video, Zhang Wen handed a bunch of car keys to Wang Dewen in the backstage passage, then left after briefly explaining a few words.
Then comes the third video.
The scene came to the parking lot. Zhang Wen drove the imported car and parked it in the parking space of the theater.
Then, after making sure there was no one around, he got out of the car and entered the theater.
At this time, it happened to be the end of John Lauer's concert.
All the VIP audience got up and went to the backstage of the Grand Theater, preparing to line up for a separate photo with John Lauer.
Seeing this, Gu Chen did not click on the next video, but fell into deep thought.
"Junior Brother Gu, isn't the car Zhang Wen drove the imported lead car? It was also the car Zhao Mingming drove later." Lu Weiwei also discovered something fishy and couldn't help but express her doubts.
Officer Wang's eyes widened, and he immediately stepped forward to check the situation. After a moment, he asked, "Why is this Zhang Wen driving the same car as Zhao Mingming?"
"Maybe the owner of this car is Wang Dewen, otherwise Zhang Wen wouldn't have to hand him the car keys." Gu Chen also asked this question based on the previous video: "Moreover, before Zhang Wen handed the car keys to Wang Dewen,
Zhao Mingming has already gone to the parking lot, so the two car keys of this car are on Zhao Mingming and Zhang Wen respectively."
"One car key for each person?" Officer Wang looked at Gu Chen next to him in astonishment, and said: "Then this car must be Wang Dewen's car, otherwise Zhang Wen and Zhao Mingming would not have given their car to him because of the grievances between Zhang Wen and Zhao Mingming.
Let each other do it."
"That is to say, Zhang Wen is very likely to have tampered with this car, and he is also the only person who has driven the car before Zhao Mingming got in the car." Lu Weiwei suddenly felt a sense of fear, as if the truth was slowly approaching.
.
"Since Zhang Wen was fine driving the car, how could something happen to Zhao Mingming? Moreover, forensic doctor Liu has already given a conclusion on the vehicle's inspection and found no toxic substances hidden in the car. Forensic doctor Liu has always been serious in his inspections, and he will not say anything casually.
"
Officer Wang also rejected Lu Weiwei's view based on forensic doctor Liu's conclusion last night.
In his opinion, the possibility of containing toxic substances in the car is extremely low, otherwise any residues may be detected by forensic Liu.
Officer Ding blew the cool air, put the hot coffee in the thermos cup into his mouth, took a few sips, and said: "This Zhang Wen has been to a car repair shop before. It seemed that there was some minor problem with the vehicle, but he soon found it.
It’s out, there’s a video inside, you can watch it for yourself.”
Before he finished speaking, Gu Chen had already clicked on the video marked as a car repair shop.
In the picture, Zhang Wen drove the vehicle into a small car repair shop and drove away not long after, staying there for only 3 minutes.
"What the hell is this guy doing? Is he repairing a car?" Lu Weiwei looked confused and said, "You can't repair anything in three minutes, right?"
She knew that car repairs and maintenance would take several hours, but in the video, the time was indeed 3 minutes.
Lu Weiwei looked at Officer Wang next to her and asked, "Old Wang, what can you do in three minutes? Tell me."
"This?" Officer Wang was also stunned by the question. He hesitated for a few seconds before saying: "It's impossible to change the engine oil in three minutes. It seems possible to add some coolant and wiper cleaning fluid."
"And...inflatable?" Gu Chen's eyes lit up when he was reminded by Officer Wang: "You can still inflate the vehicle in three minutes."
"That's right." Officer Ding agreed: "It doesn't take much time to inflate."
At this moment, Gu Chen found out the location of the repair shop, showed the map on his phone in front of everyone, and said:
"You see, this small shop is very remote, and there are many large car repair shops around the Grand Theater, but this Zhang Wen chose to go far and drove an imported luxury car to a remote shop for repair or maintenance.
, I’m afraid it’s hard to explain this, right?”
"Junior Brother Gu, you mean... there is something fishy about this repair shop?" Lu Weiwei frowned slightly, as if she also thought so: "If there is really something wrong with this shop, then we have to go there and investigate immediately."
"It really doesn't make sense to drive a luxury car to a remote store."
Officer Ding also agreed with Gu Chen's view and raised his head and said, "Who dares to hand over an imported luxury car to a repair shop with an open-air tent like this?"
"Then what are you waiting for? Go check out this store." Officer Wang stood up immediately. He was no longer the salty fish he was before. Acting immediately was a good habit he learned from Gu Chen.
The few of them reached an agreement and drove for thirty minutes. Finally, using the navigation system on their mobile phone, they found this car repair shop in an alley at the intersection.
There was originally a canopy built at the door, but it was probably demolished by law enforcement agencies due to illegal construction.
So now there are only a few pillars left with various lubricant advertisements posted on them.
Two cars can be parked in the store at the same time, and except for the camera at the intersection, there is almost no monitoring equipment around.
When the shop owner saw business coming to his door, he took the initiative and asked: "Comrade policemen, what's wrong with your car?"
Gu Chen did not reply directly, but showed Zhang Wen in the video screenshot on his phone in front of the store owner and asked: "Did this person come to your store last night?"
The store owner, who was a strong man, bowed and took a look. After thinking for a few seconds, he said calmly: "It seems to be a bit impressive."
"He drove an imported luxury car and only stayed in your store for three minutes." Lu Weiwei stood aside and continued to remind.
The store owner then said "Oh" and said, "I remember, there is such a person."
"Then what is he doing here?" Officer Wang asked.
"The person who came to inflate said the tire was flat," the repair shop owner said.
"Are you doing anything else?" Gu Chen asked.
The shop owner scratched the back of his head, feeling as if he was being interrogated. However, he quickly remembered something and said hurriedly: "By the way, he asked me if there was any nitrogen in the shop and wanted to add some nitrogen to the tires. I said no.
Then he took out a small blue bottle from the car, said he had it, and asked me to connect it to a gas scale."
Gu Chen and Lu Weiwei looked at each other, feeling that this was a bit interesting.
Behind him, Officer Wang quickly asked: "What happened next?"
"Later? Later I agreed and charged him ten yuan. He connected the air scale himself and added nitrogen to the tires." After recalling it for a few seconds, the shop owner added: "By the way, he was very skillful.
I just don’t know much about tire pressure.”
Gu Chen frowned and asked, "How do you say this?"
"Because his tire pressure was too high, I reminded him that it was enough and the tire might burst if he inflated more, but he still filled it up beyond the limit."
Then, the owner of the repair shop took out a pack of cigarettes and handed them to Gu Chen, Officer Wang and Officer Ding in turn.
After several people didn't take it, he lit it for himself, started smoking, and said casually: "He didn't listen to my suggestion, so I didn't say much. Anyway, this is not my car. If it gets a flat tire, it won't follow."
What does it matter to me?"
"How high was the tire pressure at that time?" Gu Chen asked.
"It's very high, it's already seriously exceeded the standard," the store owner said.
"What about the blue bottle containing nitrogen later?" Lu Weiwei asked.
The shop owner looked around, pointed to a garbage pile in his shop and said: "Right there, he said that the nitrogen has been used up. I said this bottle is good, leave it to me, but he didn't agree and insisted on taking it away.
, and later saw him throwing the blue bottle from the car into the roadside trash can when he drove the car to the intersection."
"It was funny to me at the time. He didn't want it himself and wouldn't give it to me. This thing must be worth some money at least, so I just picked it up."
After thinking about it, the store owner added: "You can take it if you want, but you have to pay for it, just show your kindness."
Lu Weiwei walked over and picked up the blue gas bottle. When she was about to put her nose close to it, she was stopped by Gu Chen who was standing aside.
"Senior Sister Lu, it's better to hand it over to Forensic Doctor Liu for testing first."
"Okay." Lu Weiwei nodded and took out a folded transparent evidence collection bag from her equipment.
After putting on white gloves, seal the gas bottle.
Officer Wang gave some money and asked the store owner to issue an invoice, and then the group of people left in the car.
On the way to the Technical Section of the Municipal Bureau, Officer Wang, who was driving, glanced at Gu Chen beside him and asked, "Gu Chen, what do you think?"
"Maybe this is Zhang Wen's modus operandi." Gu Chen said.
"Let me guess." Lu Weiwei in the back row frowned slightly. After thinking for a few seconds, she said, "This Zhang Wen may not have filled the tires with nitrogen."
"Smart." Gu Chen immediately grinned: "Senior Sister Lu is right."
"That means that this gas bottle is likely to contain poisonous gas?" Officer Ding also asked curiously.
Gu Chen nodded and said: "I carefully watched the video of Zhao Mingming getting into the car. After entering the vehicle, he opened the door and squatted in the left front of the vehicle for a long time. I think he must have discovered the left front tire.
The tire pressure was too high, so I went there to deflate it.”
"So, this is Zhang Wen's cunningness." Lu Weiwei suddenly realized.
Gu Chen nodded and said, "That's right. This Zhang Wen used the stored poisonous gas in advance to forcibly inflate the left front tire, which had normal tire pressure. Then he drove an imported luxury car with a seriously over-inflated tire and parked it.
Grand Theater parking lot.”
"Zhao Mingming, who then came to lead the way, noticed a warning about high tire pressure after starting the vehicle. Then he got out of the car and found that the tire was too inflated, so he released the air from the left front tire to stabilize the vehicle's tire pressure.
"
"But he doesn't know that the left front tire has been filled with toxic gas by Zhang Wen at this moment?" Officer Wang said.
"That's right." Gu Chen nodded and said, "While deflating, a large amount of toxic gases evaporated, causing Zhao Mingming to inhale the toxic gases unknowingly."
"But he did not have any adverse reactions immediately, so he continued to get into the vehicle and prepared to drive and lead the way."
"However, while driving on the highway, as the poisonous gas was inhaled into his lungs and caused various adverse reactions, Zhao Mingming began to become seriously confused and began to foam at the mouth. This led to the accidental car accident last night.
What happened is what we all saw."
Gu Chen made his own reasonable reasoning based on the various scenes in the video and the blue inflatable bottle.
Everyone agreed, but the most important thing is that all conditions will be considered true only when Liu's forensic test results come out and prove that the blue gas bottle contains indeed poisonous gas.
