The nervousness of the young man in front of him aroused the suspicion of Ye Xuan and Luo Meng, Ye Xuan tried his best to make his tone kinder, not wanting to put pressure on this young man.

"What's your name?"

"I ...... My name is Ma Xiaosong. ”

"Where?"

"Heavenly ...... A native of Beijia Village, Tiannan City. ”

"How big."

"18 years old."

Ye Xuan entered the identity information of the teenager and entered the database for comparison. This teenager has had divorced parents since he was a child and grew up in a single-parent family, but he has no bad record.

"Ma Xiaosong, do you know Zhao Lin?"

The boy was a little timid: "I saw it once in the car dealership." ”

"Do you have anything to do with each other?"

Ma Xiaosong panicked: "Officer, I'm ...... I didn't mean to, I really didn't mean to get the oil on that Mercedes-Benz, please, spare me, I ...... Can't afford such an expensive car. ”

Luo Meng smiled and sat down: "Don't worry, we are definitely not here to make you lose the car, you don't have to be nervous, we just want to investigate other things." ”

Luo Meng's words worked, and the young man's hanging heart suddenly relaxed: "Two police officers, please ask, I know that I must answer." ”

"Ma Xiaosong, do you know that Zhao Zhicheng is dead?"

"I know, this thing is broadcast non-stop on TV, and everyone in Tiannan City knows about it."

"Hmmm! That's good. Do you know what the consequences of testifying are false? ”

"Let's go to jail."

"Hehe, that's good. So if we ask you, you must answer honestly, and if you give false testimony, we will arrest you and send you to prison. ”

"False testimony, officer, I have nothing to do with the case of Zhao Zhicheng's death. I'm just a car repairer, and I don't even have a chance to meet that kind of rich people. What the hell are you asking me? ”

Ye Xuan continued: "In addition to knowing Zhao Lin in the car dealership, did you know Zhao Lin before?" ”

The young man shook his head directly: "I'm a car mechanic, how can I know a rich man." ”

Ye Xuan accentuated his tone: "You are eighteen years old, and you have to bear legal responsibility for speaking, do you know the consequences if you don't tell the truth?" ”

The young man looked bitter: "I know, if you give false testimony, you will be in prison." But I just don't know Zhao Lin, I said that knowing is the real false testimony. ”

Although the young man was a little suspicious, there was no evidence to prove that he deliberately poured engine oil on Zhao Zhicheng's vehicle to create an opportunity for Zhao Lin to change the seat cushion.

Ye Xuan and Luo Meng each inquired for a while, but the young man insisted that he had nothing to do with Zhao Lin.

Luo Meng and Ye Xuan had no choice but to give up and no longer asked. If this young man is really cunning with Zhao Lin, then Zhao Lin will definitely pay this young man. No one wants to do this kind of stupid thing that no one wants to do without giving money and risking jail time to help others.

Ye Xuan called the SWAT team and asked them to send someone to the bank to check the transaction records on Ma Xiaosong's bank card in the past year, to see if there was any large amount of money in and out, and to ask the bank to monitor his bank card. Another person was sent to the mobile company to investigate Ma Xiaosong's phone communication records, and monitor his phone to see if he had not contacted Zhao Lin and whether he would contact Zhao Lin.

If Ma Xiaosong is really one of the suspects, and the police come to the door now, Ma Xiaosong will definitely panic in his heart and will have some unusual actions.

Ye Xuan and Luo Meng got out of the car dealership, and the two still decided to take Zhao Lin, a key suspect, as a breakthrough in the case.

By contacting the Local Taxation Bureau, Ye Xuan and Luo Meng got some news that Zhao Lin had a total of six mansions. These six mansions are located in different parts of Tiannan City, and there are four in the city center.

It takes 20 minutes to get from the city center to Chunjiang Road. The piece of ice that the killer had hidden the liquid bomb and the tip of the needle took 34 minutes to melt after a computer calculation. According to Zhao Zhicheng's speed when driving, when the ice melted, the car just arrived at the Chunjiang Road overpass.

Obviously, 4 mansions in the city center can be excluded, and this is not the place where the crime was committed.

If Zhao Tianlin made liquid bombs in these four mansions and put them in the car cushion, there would be not enough time to adjust the bag.

It takes 25 minutes to get from the city center to the car dealership, and it takes 30 minutes to get to the Chunjiang Road overpass from the car dealership and 55 minutes to get back. If this is the case, the ice will melt if it can't reach the overpass, and Zhao Zhicheng won't have an accident at the Chunjiang Road overpass.

After Ye Xuan and Luo Meng discussed, they finally placed the suspicious point in Zhao Lin's property near Chunxiao Road.

It takes 38 minutes to reach the Chunjiang Road overpass from this house, and if you remove the 5 minutes that Zhao Zhicheng delayed in the car dealership, then you can get to the overpass in 33 minutes. This property is very likely to be the crime point, if Zhao Lin had installed a liquid bomb here, and then let Zhao Zhicheng delay in the car dealership for five minutes, and adjust the cushion, the tragedy would have just happened.

Another important point is Zhao Lin's wife Chen Fang.

It was precisely because she called Zhao Zhicheng that Zhao Zhicheng entered the car dealership and met Zhao Lin, which was delayed for five minutes.

If it weren't for the call, Zhao Zhicheng would have arrived at the Chunjiang Road overpass five minutes earlier, and he wouldn't have had an accident on this section of the road. It is very likely that the husband and wife jointly committed the crime.

Ye Xuan immediately reported to the SWAT team and asked the soldiers to divide into two routes, all the way to arrest Zhao Lin's wife Cheng Fang and interrogate him. Because of the close distance, Luo Meng and Ye Xuan are now going to Zhao Lin's mansion near Chunxiao Road to search for evidence.

On Chunxiao Road, in front of the Tianchen Villa Group, Ye Xuan and Luo Meng entered this luxurious villa with an elegant environment and a hill at its back.

This Tianchen villa complex can only be moved in by the wealthy, and each villa includes a lawn and reaches 5,000 square meters. Each villa is readable, about a kilometre away from the other. Even if Zhao Lin failed to build a liquid bomb here, as long as the explosion was not very powerful, it would be impossible for a neighbor a kilometer away to find out.

Luo Meng and Ye Xuan are almost sure that this is the best place for criminals to make liquid bombs, with the time and conditions for cooperating in the crime.

Ye Xuan rang the doorbell of the villa, and a thin old man opened the villa complex.

Ye Xuan showed his documents, but the old man didn't dare to stop him, and the two began to enter the villa to look for clues.

In this villa, there are many rooms, Ye Xuan and Luo Meng acted separately, looking for them one by one.

In Zhao Lin's bathroom, something attracted Luo Meng's attention, and a bottle of shampoo worth only a dozen yuan aroused Luo Meng's suspicions. Judging from the decoration of the house, to the furniture in the room, Zhao Lin's valuable collections, and then to the expensive carpets, Zhao Lin should be a broad son who enjoys first, and it is a bit abnormal to use a bottle of shampoo for more than ten yuan.

Romon took the shampoo and sniffed it, and some of the chemicals in it aroused Romon suspicion. Some chemicals in shampoo are refined, and with nitric acid and fat, nitrate glycerin can be extracted and made into liquid bombs.

Romon packed more than half of the shampoo in a plastic bag, and this bottle of shampoo is important evidence.

At the mouth of the bathroom drain, a blonde hair looms out, and it doesn't escape Romong's eyes.

"Could it be that Zhao Lin took the foreign girl home for the night again?" Romon carefully removed the golden hair with a camera and put it in a plastic bag.

"Romon, I've found something suspicious." Ye Xuan's voice came from the headset.

"What's the doubt?"

"I found a bottle of nitric acid and threw it in the trash."

"I'll come right over."

Nitric acid plus shampoo, any fat is enough to create a liquid bomb, and there is a 90% chance that Zhao Lin is the murderer.

Luo Meng put away the suspicious objects and hurried to meet Ye Xuan.

Romon passed by an open room, and a faint smell of perfume stopped him.

"What a familiar taste!" Romon was a little surprised.

Gently push the door open, and everything in the room is unharmed, except for the absence of sheets on the bed.

Slightly curious, Romon walked down the stairs, and in the trash can on the side of the staircase, a white cloth attracted Romon to the idea, which was the sheet on the bed.

"Why did you throw this sheet away?" A sense of curiosity that attracted Romón. Romon put on his gloves and pulled the sheets out of the trash.

The bed sheet is snow-white, there are no dirty spots, it stands to reason that this sheet should not be dirty, why should it be thrown away? Romon felt that there was something greasy in it. Pulling the sheets out and laying them flat on the bed in that room, turning on the light, a small patch of dirt on the sheets caught Romon's attention.

"It's disgusting." Romon stared at the stains, and naturally understood that these things were left over from the time when men and women were having fun.

"Doesn't Zhao Lin's wife live in the city? Could it be that this guy has found another woman? Luo Meng faintly felt that there might be something suspicious about this sheet, and immediately put the whole sheet in a large garbage bag. After proposing it, he rushed to meet Ye Xuan.

[This chapter is very important, although there are some things that you may not understand and are confused. But when this case is really solved, everyone will understand that everything I wrote, every detail, is actually useful. 】