In less than 24 hours, the murderer has committed two crimes in a row, killing a total of three people.

This is nothing more than a case of serial murder of an extremely bad nature and extremely serious impact.

As members of the serious crime team, it is no surprise that we received an order from the boss, Shen Ruoshan, that we must solve the case as soon as possible and restore social stability.

At the same time, various departments of the Ningzhou Municipal Public Security Bureau are intensively investigating the case.

Within a few hours, the forensic department had completed the autopsy of the deceased Shen Yuan in this case.

"The deceased had two wounds on his body, one in the heart of the left front chest and one in the lower back. I took the nails from both wounds and compared them with the nails in the two deceased people in the commissary, and they were of the same model. Ren Qiushi handed me the autopsy report and said to me at the same time.

"So, it's been determined that this is a serial murder case, and it can be investigated together?!" I flipped through the autopsy report in my hand and confirmed to Ren Qiushi.

Ren Qiushi nodded, and affirmed firmly: "You can combine the cases for investigation." ”

But then, Ren Qiushi added to me: "The two wounds on the deceased's body have different degrees of penetration. ”

"The level of penetration is not the same? What does that mean? I looked up at him and asked puzzled.

"The wound on the back of the deceased's waist is significantly weaker in penetration than the wound on the left chest. This shows that the murderer was standing behind the deceased at that time, holding a nail gun and firing a shot at the deceased's back. Due to the murderer's short height, the nail only hit the murderer's lower back.

The deceased then fell to the ground in pain, losing his mobility and ability to resist. But the attitude of the murderer is very clear, he wants the life of the deceased. Therefore, the murderer stepped forward with a nail gun and made a re-shot at the left front chest and heart of the deceased. However, this time the refill gun is much closer than the attack from behind, so the heart trauma in the left front chest and the penetration of the nail are more serious. Ren Qiushi explained to me seriously.

According to the autopsy, especially the degree of nail penetration of the two wounds, Ren Qiushi restored the situation at the scene of the crime for us.

Sure enough, it was all exactly the same as what we found on the spot and what we learned from the discussions.

"Does it compare to the penetration of the two dead in the commissary?" I thought about it and asked him again.

Ren Qiushi nodded, and said in a deep voice: "It's all compared, two cases, three deceased, and absolutely fatal injuries are all in the heart." Although the position of the nail into the heart is different, some are to the left and some to the right, the purpose and lethality are the same. ”

After listening to his words, I nodded thoughtfully and continued to look through the autopsy report.

The autopsy report contains very detailed records, including a report on the deceased's blood, gastric solution and other biological samples.

It is specifically mentioned that the deceased Shen Yuan in this case has multiple knife wounds on his body, but after examination and diagnosis, they are all old injuries and have no connection with this case.

It seems that this Shen Yuan's life experience is still very rich, not only is he a spiritual guy, but he must have participated in armed brawls many times.

Such an identity background makes me even more convinced that such a person will never act alone, and there must be some gangsters around him who have the same experience as him.

At the same time, it is common for a person like Shen Yuan to make enmity with others, which is also more in line with Li Meng's criminal profile.

I continued to look through the autopsy report, and when I saw the column of the time of death, I suddenly noticed a strange place.

That was Ren Qiushi's determination of the time of Shen Yuan's death.

At the scene of the crime, Ren Qiushi made a preliminary inference based on the temperature of the corpse, and the time of death was within six hours. Then according to the autopsy calculation, the time when Shen Yuan was killed must have been after nine o'clock this morning.

The time of death on the autopsy report stated that the time of death was between 3 and 5 o'clock in the morning today.

There was a difference of about five hours.

Ren Qiushi is the best and most professional forensic doctor I have ever seen since I joined the police, and this kind of mistake will never occur.

"The time of death is not wrong, is it?" I thought about it and asked him a little puzzled.

Ren Qiushi stood beside me, turned his head to look at the time on the autopsy report, nodded and said, "That's right, it's between three and five o'clock today." ”

I didn't speak, I looked at the autopsy report in a daze, and then looked at Ren Qiushi in a daze.

Ren Qiushi also understood what I was thinking at this time, he swallowed his saliva and explained to me: "The temperature of the corpse will change with the change of the surrounding environment, to take the simplest example, if an apple is placed in the refrigerator, it will show the temperature in the refrigerator, and when it is placed on the table, it will show the temperature of the room. But the degree of rot of this apple cannot be determined by temperature.

I extracted the stomach dissolution of the deceased and found that the deceased had drunk a lot of alcohol and had eaten a lot of indigestible lamb skewers.

Due to the effect of alcohol, the body temperature of the deceased has increased significantly, and the temperature of the deceased has also risen last night, so the body temperature of the deceased cannot be lowered in a short time after death.

But judging by the degree of digestion of the dissolved matter in his stomach, the time of death was between three and five o'clock this morning. That is, the deceased was killed by the murderer by the river after eating the barbecue. ”

I believe in Ren Qiushi, and I also believe in the time of his death.

Shen Yuan had a barbecue before he died, so where did he eat barbecue at that time? And who eats the barbecue? This becomes especially important.

With such an important clue, it also gives us a clear direction for our detection work.

The two cases are being investigated together, which is a serial homicide case, and the murderer is a dwarfism patient who is about 1.1 meter tall and has a shoe size of 37.

Although a person with dwarfism is shorter than the average person, his actual age and physical development are the same as those of a normal person.

In other words, although people with dwarfism are short in height, their body functions do not stop developing, and they will also age.

We have not given up on continuing the investigation into the murder in the commissary, but have focused our investigation on this case.

All the previously formulated investigation plans are still ongoing, and we continue to investigate the social relations of He Xiangshan and Li Xuemei, as well as the purchase channels of Halloween pumpkin costumes and nail guns.

Three dead, one murderer.

This shows that the three deceased must have something in common, and they must all have some specific intersection with the murderer......