The murderer was successfully brought to justice, but the murder weapon had to be found to convict him.

In the next two days, the members of the criminal squad turned Guo Fenglian's home upside down, and did not find anything suspected to be the murder weapon.

With Guo Fenglian's arrest, it took nearly five days for several people to start searching for evidence with confidence until they were frustrated and discouraged when they couldn't find evidence.

Without evidence, there is no way to conclude the case, and without a verdict, it is impossible to prove that the murderer of the first two victims is Guo Fenglian.

In the past few days, the team has been sad like a family funeral, the office is lifeless, and there is no personal popularity.

There is a large white table in the center of the office, and the table is full of various analysis reports on Guo Fenglian.

Among them, there is no way to find a suitable reason in the column of the reason for the killing.

"Judging from the appearance, this Guo Fenglian and the two deceased have no grievances, why did they kill people." Li Dongliao's eyes were black.

He felt strange, in the past, it was difficult to solve the case and find the murderer, but now the murderer has been arrested, which means that the answer has been announced, as long as it is reversed to verify it, why is it so difficult? ?

According to the injuries of the two deceased, the forensic doctor Lao Zhang speculated that it was a machete used to chop meat, and from the length of the wound, the length of the blade should be at least 30cm long.

There are also scratches on the deceased's mouth, which are supposed to be caused by the murderer's use of some kind of metal fixator to fix the deceased's head.

The 30cm machete and the metal retainer are not so easy to ignore.

Li Dongliao also found a month's surveillance near Guo Fenglian's house to see that he did not throw away a large bag of garbage during the killing, and there was no discarding of the murder weapon, which means that the murder weapon could not be taken out of the house.

"It's damn bad, what the hell!!" Li Dongliao became more and more irritable, "I finally caught someone, and now I can't find the murder weapon, I have to release him!" ”

At this time, Tan Wan received a call from the city hospital.

The hospital's phone was first made to the police station, and then it was transferred to Tan Wan.

Tan Wan took the phone suspiciously: "Hello, I'm Tan Wan." ”

On the other end of the phone was the ICU emergency room of the hospital, and the doctor in the emergency room told Tan Wan that a patient who was on fire had just come to the hospital, and after examination, he felt that the situation was a little strange.

The doctor on the other side couldn't say clearly, and when Tan Wan asked what was strange, the doctor on the other side also replied very vaguely: "Officer, come first, and I'll tell you in detail after you come." ”

Li Dongliao didn't know the truth, looked at Tan Wan with his bag and was about to leave, and hurriedly asked, "Where are you going?" ”

"Go to the hospital."

I drove to the city hospital and found the ICU emergency room all the way.

After explaining his intention and identity, the security guard at the door of the emergency room led the person in: "Doctor Gu, the police you are looking for are here." ”

Dr. Gu is very young and looks like he has only been working in the hospital for a few years.

"You're talking about police officers, aren't you?" Dr. Gu stepped forward and brought Tan Wan to bed No. 3, "The patient I'm talking about is him." ”

Looking in the direction of Dr. Gu, the person lying on the bed was a little familiar, and then looked closely, isn't this the homeless man!

The homeless man who was wearing a black rag himself changed into a clean blue and white striped suit at the moment, and his face was also cleaned, and he almost didn't recognize anyone when he talked about it.

Tan Wan pointed to the homeless man who was in a coma on the hospital bed and asked, "What's wrong with him?" ”

"Two lower legs were severely burned, and the upper limbs and abdomen were also burned by fire." Dr. Gu held up the case hanging at the foot of the homeless man's bed, "Fortunately, it was not far from the river when it happened, and it was only discovered when it fell into the river." ”

When Dr. Gu lifted the corner of the sheet, revealing the homeless's festering feet, a strong stench came to his face.

The surface of his calf had ulcerated to the point where he couldn't see clearly, and there were oyster-shell-shaped blister holes on it, seven or eight of which were large and small, and the size of a cherry was close to that of a cherry, and it looked very terrible.

"Miss police officer, don't be afraid, this is called eczema, also called deep impetigo."

Dr. Gu introduced the disease to Tan Wan, which is mostly caused by hemolytic streptococcus, and is caused by poor hygiene, malnutrition or physical weakness.

However, this patient did not have targeted treatment, and the delay has led to the rapid development of skin lesions, and necrotizing ulcers have gradually emerged, and if they are not treated, they will easily develop sepsis or die of pneumonia.

The reason why the hospital will call the police station is ......

"When the patient arrived, the burning material on his leg stuck to his skin, and we analyzed it, and it looked like human bone powder, so it ......," Dr. Gu hinted with some taboo.

As we all know, bone mineral salts account for about 75% of human bones, of which 95% are calcium and phosphorus.

Some people in the cemetery have seen ghost fires, and the so-called 'ghost fire' is actually a phosphorus fire, which is the result of a chemical reaction of gases produced by the decomposition of organisms.

Phosphorus has a very low ignition point and is extremely easy to burn, and the heat after combustion can reach 400-800 degrees.

Tan Wan looked at the homeless man who was lying on the hospital bed, and fell into deep thought, the missing pieces in his mind were piecing together a complete model little by little.

When he realized that he might have found the wrong person, Tan Wan seemed to have fallen into a black hole of consciousness.

She frowned, her lips opened and closed slightly, and she couldn't help but be shocked by the thoughts in her head now: "It's wrong, it's all wrong...... So that's it! Maybe it wasn't Guo Fenglian who killed people......"

"What are you talking about, Miss Officer?"

Tan Wan didn't seem to hear his question, and asked bluntly: "Can he still live?" ”

"Yes, I'm still in a coma, and I'll be more awake after the antibiotics are introduced."

After receiving an accurate answer, Tan Wan made up his mind a little: "Thank you, Doctor Gu, I have to leave now." ”

Tan Wan didn't wait for Dr. Gu to respond, picked up the bag, and left the emergency room with a solemn face.