The crime scene was again at the Chinese University, on the rooftop of a ten-story building.

He Jiahui came to the rooftop and was shocked when he saw the scene in front of him.

"This method of killing is too strange!" He Jiahui thought to himself.

On the ground not far away, the deceased fell to the ground, his hands were tied behind his back, his feet were tied, and his mouth was gagged.

In addition, the deceased's body was tied with several turns of wire.

There is also a metal iron rod sandwiched in the middle of the iron wire. The iron rod faces the sky directly, and at the end of the iron rod, four iron forks are branched out.

"This design must be a lightning rod!" He Jiahui thought to himself.

Another name for a lightning rod is "lightning rod". This thing itself is a lightning device. The lightning rod is connected to the ground wire. When lightning strikes the lightning rod, the current will be introduced into the earth through the ground wire, thus protecting the building from damage.

Lightning strike.

And if the lightning rod does not have a ground wire but is connected to a person's body, the consequences can be imagined.

If it was suicide, he would not have tied his hands and feet, gagged his mouth, and put a circle of wire around the outside. So this is obviously a homicide.

At this time, a uniformed police officer came over and handed a wallet to Ma Jun: "Sir Ma, this was found at the scene. It was scattered around the body along with the keys."

Ma Jun took the wallet and opened it. There was an ID card inside, and it turned out to be Liu Baorui's.

"Did you find the deceased's cell phone?" Ma Jun asked.

The uniformed police officer shook his head: "There were only wallets and keys at the scene, but no mobile phone was found."

Then everyone stepped forward to check. The expression on the deceased's face was distorted, but they could still tell that it was Liu Baorui.

"After handling cases for so many years, this is the first time I have seen such a way of death! The body was tied with iron wire and connected to a lightning rod. Coupled with the thunderstorm last night, he must have been struck to death by lightning!" Ma Jun said.

"Not necessarily. In many cases of people being struck to death by lightning, the deceased was already killed and then struck by disguised lightning." He Jiahui said.

"Where is the forensic doctor? How long will it take for the forensic doctor to arrive?" Ma Jun asked immediately.

"The forensic doctor is already on the way and will arrive in about ten minutes." Yang Zai answered.

"Then let's wait. After the forensic doctor arrives, he should be able to confirm the cause of death." Ma Jun said.

He Jiahui walked forward and examined the body carefully.

"The clothes of the corpse were severely damaged, broken in many places, and there were cracks on the shoes, which is consistent with the situation after being struck by lightning. Many times after the human body is struck by lightning, the clothes and belongings on the body are likely to be damaged.

Strip.”

He Jiahui paused for a moment and then asked: "I just said that a key was found at the scene. Where is it?"

Yang Zai took the key over, and He Jiahui took out his own key and held it close. The two keys were immediately sucked together.

"There is magnetization on the key, which only occurs after a lightning strike." He Jiahui continued to look at the body as he continued.

Next to him, Yang Zai asked: "I saw on TV that if someone is struck by lightning, the body will be charred black. Why does the body of the deceased look so clean? Is it washed away by rain?"

He Jiahui answered, "Lightning lasts for a short time, and if it affects the entire body surface instantly, it can rarely cause serious burns to the human body itself. However, metal objects on the human body will be heated by lightning and arc effects, which will cause serious burns to the human body."

Produce burns.

But hair is different. Under normal circumstances, if you are struck by lightning, your hair will be burned or even carbonized. You can see the same with his hair. But this does not prove that Liu Baorui was struck to death by lightning, because first

If a person is killed and then struck by lightning, these characteristics will also appear."

"Sir He, do you know anything about forensic medicine?" Ma Jun asked in surprise.

"I know a little bit about it!" He Jiahui replied.

Before this, Ma Jun only thought that He Jiahui was a little expert in reasoning, with good insight and analytical skills. Now that He Jiahui showed off his forensic skills, Ma Jun immediately took a high look.

"No wonder Huang Qifai wanted to put this kid in the crime squad. He is really a talent!" Ma Jun thought to himself.

At this time, He Jiahui had already begun to look at the deceased's neck, then opened the collar of the deceased, looked at his chest, and then said: "Liu Baorui should have been struck to death by lightning."

"How did you know?" Ma Jun asked curiously.

"On the neck of the deceased, there were lightning strikes, which are red, branch-like things." He Jiahui pointed to the neck of the deceased and continued:

"This is caused by local mild skin burns and subcutaneous blood vessel paralysis and expansion when strong current passes through. This is the most conclusive evidence of death from lightning strikes."

He Jiahui said, looked around again, and continued: "Since the deceased died from a lightning strike, this should be the first scene of the crime! And the time of death should be last night, because there was only lightning last night.

"

Ma Jun looked around and sighed helplessly: "This first crime scene is of little use. It rained last night and all traces of the crime were washed away. I guess there will be no useful clues at the scene.

"

"No matter if there are any clues at the scene, we have to look for it." He Jiahui paused and then said: "First, let's ask the witness who found the deceased!"

After a while, a man who looked like a maintenance man was brought over.

"Sir, are you the first to find the deceased? Please tell us in detail how you found the deceased." Ma Jun said.

"I am a maintenance worker in a property management company, and my usual job is to repair and maintain the electrical equipment in the building. The building's air conditioning units, ventilation units, water pumps, and cooling towers are all installed on the roof of the building.

There was a thunderstorm last night, so early this morning, I came to the rooftop to check the condition of the equipment. Then I found someone dead here, and I immediately called the police!" the maintenance man replied.

"Is the rooftop door usually locked?" Ma Jun asked next.

The maintenance man shook his head: "The door to the rooftop is not locked, and anyone can come up. But most people won't come here if they have nothing to do. The air conditioner is here, and the surrounding sound is quite noisy."

"Then when was the last time you came to the rooftop?" Ma Jun asked again.

"Generally, if there is no problem, I will come to check once a month. If there is a typhoon or thunderstorm, I will come to check the next day. The last time I came here was the day after the typhoon ended two weeks ago.

"The maintenance man said.

Ma Jun asked a few more questions, but did not get any useful information.

At this time, the forensic doctor and forensic evidence also came to the scene and began to conduct preliminary autopsy and evidence collection.

He Jiahui and Ma Jun discussed the case.

"It seems that Liu Baorui didn't report to the police station two days ago. He didn't run away, but he was kidnapped. Do you think it was Yutian Biology that did it?" Ma Jun said.

He Jiahui thought for a while and said, "From the perspective of the beneficiary, if Liu Baorui died, the biggest beneficiary would indeed be Yutian Biotech. But if it was really Yutian Biotech that did it, why did it take so much effort to kill people?

If I were Yutian Biology, since I had kidnapped Liu Baorui, I could kill him directly. Why would I put him on the rooftop, wrap a circle of wire around him, and insert a lightning rod, waiting for the thunder?

Hacking people to death? Isn’t that too complicated?”

"That's right. This is indeed not a normal method of killing. Instead, it looks like an execution." Ma Jun said.

"I feel the same way, and I also have an ominous feeling." He Jiahui paused, lowered his voice, and then said: "Let the forensic doctor check whether there is sevoflurane in Liu Baorui's body."

At the mention of sevoflurane, Ma Jun's face froze, and he also asked in a low voice: "You mean, the person who killed Liu Baorui was the same person who killed Chen Zishuo and Fang Moxuan before. He was the third person in the serial murder case.

A victim?"

"Chen Zishuo, Fang Moxuan, and Liu Baorui are all members of the student union. Do you still remember my initial speculation that the student union has offended someone, and the enemy is waiting for revenge. If this theory is true, then Liu Baorui is likely to be the third victim.

." He Jiahui opened his mouth and replied.

"If that's really the case, Sir Huang is going to go crazy again! After more than a month of searching for the previous two victims, there are no clues, and now there is a third one. Sir Huang will definitely not be able to keep up with the explanation." Ma Ma

Jun shook his head helplessly.

"I'm not as pessimistic as you. If it's really the same murderer, it means that person has started committing crimes again. As long as he has done it, it will leave traces, and maybe we can find more clues." He Jiahui comforted him.

…

"The iron wire wrapped around the body of the deceased is ordinary iron wire, which can be bought in hardware stores all over Hong Kong. As for the lightning rod, it is also old and may be found in the garbage dump. In addition, we

No traces of the murderer were found at the scene," the forensic report reported.

"So there are no clues?" Ma Jun was a little disappointed.

But this is to be expected. It just rained last night. Even if the murderer left clues, they would be washed away by the rain.

The forensic doctor also came over: "There are obvious lightning strikes on the neck of the deceased, which can confirm that the deceased was struck to death by lightning. As for the time of death, it can only be determined to be between ten o'clock last night and four o'clock in the morning."

Because an instant lightning strike will affect the organs in the body and thus affect the liver temperature, I need to conduct further autopsy to confirm the accurate time of death of the deceased."

"Then perform an autopsy on the deceased as soon as possible! By the way, check whether there is heptachlorane in the body of the deceased," Ma Jun said.

…

In the building where the murder occurred, all the surveillance videos in recent days were transferred to the crime team. Everyone lay in front of the screen and began to check for suspicious persons.

The first thing to determine is whether the deceased Liu Baorui went to the rooftop by himself or was transported to the rooftop.

If the deceased Liu Baorui went to the rooftop by himself, Liu Baorui's figure should appear in the surveillance video, unless Liu Baorui avoided all surveillance.

If Liu Baorui was transported to the rooftop by the murderer, then the murderer would definitely have used transportation tools, and the image would have been left on the elevator surveillance system.

The location of the crime was a ten-story building. The rooftop was equivalent to the eleventh floor. Without an elevator, it would be difficult to transport a large living person to the top of the building.

While the crime team was watching the surveillance video, the forensic doctor also had the results of the autopsy.

"The deceased had multiple bone fractures on his body, but they were not fatal. They should have been caused by being beaten. In addition, the deceased had obvious bleeding under the scalp, as well as subdural and arachnoid hemorrhage.

There were diffuse spot hemorrhages in the brain, as well as heart wall damage, intracardiac contusion, and myocardial fiber rupture, all of which were consistent with being struck by lightning.

It can be determined that the deceased was struck by violent lightning, which caused cardiac arrest, damage to the central nervous system and multiple organs in the body, leading to death." The forensic doctor introduced.
To be continued...