In order to confirm the identities of the two deceased and whether Dong Wei, the suspect who committed three vicious cases in R City, is Liu Fan, the son of Liu Fulai and his wife, they must obtain biological samples from the three people for DNA comparison.

Without further ado, Xia Shi asked Director Ding to immediately take them to Liu Fulai's house for further investigation. Considering that a serious criminal case may have occurred in Liu Fulai's home, Forensic Doctor Zhao and trace examiner Xiao Tian from the city bureau also accompanied them to collect evidence.

As Director Ding said, Sanqiao Village is indeed a sparsely populated village. Ten o'clock in the morning is the most active time for people, but there are hardly any people in the village. Only the occasional rooster and dog bark from somewhere suggested that their village was inhabited.

Walking along winding country roads and crossing two mossy stone bridges, the group came to a dilapidated two-story building. This is Liu Fulai's home, and since 2004, after Liu Fulai's family of three moved out of here, no one has inquired about the situation in the house.

In fact, this is the best, if there is really a murder and mutilation of corpses, the evidence of the crime may still be preserved intact.

There was a rusty iron lock on the outside of the wooden door of the small building, but this simple lock was not difficult for Gu Song at all. In the blink of an eye, he pried open the iron lock. He cautiously pushed open the wooden door, and with a cacophony of creaks, an extremely complex smell came to his face, mixed with the smell of dust, rotten wood, musty, and, blood.

That's right, something heinous used to happen here. Gu Song stood at the door, as if he could hear heart-rending shouts coming from inside, as well as the muffled sound of his head being cut off.

After careful investigation, they were almost certain that this small building was the scene of the crime and the scene of the dismemberment. Although more than ten years have passed, the remaining blood stains in the house have long been blurred and darkened, but under the effect of luminous ammonia, whether it is the ground, the wall, or the furniture in the house, there is a faint blue light everywhere, including the blood stains that were erased before, are all clearly presented in front of everyone, which is shocking.

Forensic Zhao found a rusty meat chopping knife on the kitchen stove, with a mutilated blade, which was likely a tool used by the killer to dissect the body. In addition to this, he also found a small number of unburned pieces of clothing in the stove where the fire was made. If the two deceased were really the owners of the house, Liu Fulai and his wife, then their son, Liu Fan, ......

"At the time of the crime, Liu Fan should have been only about fifteen years old, right? How could such a small child ......" Director Ding was obviously aware of Liu Fan's suspicion of committing the crime, but he couldn't believe that a teenager would kill his own parents, chop their bodies into pieces, and bury them in the barren mountains and mountains dozens of kilometers away.

In his impression, Liu Fan is an introverted boy who doesn't talk much, but he is hardworking and down-to-earth, often helping his mother with farm work, and taking on the responsibility of taking care of the family at a young age. He couldn't imagine how such an honest child could do such a heart-wrenching thing.

Gu Song said helplessly: "Judging from the clues collected so far, Liu Fan's suspicion of committing a crime is indeed very great. If the death of Liu Fulai and his wife had nothing to do with him, why did he leave the village in silence and disappear from then on, using a fake identity to hide until he committed the crime again? According to you, Liu Fulai has a short temper and often punches and kicks Liu Fan, using him as a punching bag. In that case, the relationship between their father and son should be quite bad, right? In other words, Liu Fan had the criminal motive to kill Liu Fulai. ”

"That's right." Director Ding nodded noncommittally, "Liu Fan is very disgusted with his father, and seeing Liu Fulai is like seeing an enemy." If Liu Fulai was killed by him, I can understand it, but what I don't understand is why he killed Sun Mingxiang together? He obviously felt very sorry for his mother, and looked forward to growing up quickly every day, taking his mother out of the village and getting rid of Liu Fulai's domestic violence. ”

"Perhaps," Xia Shi speculated, "......Sun Mingxiang was not killed by Liu Fan. We have not yet ascertained the cause of Sun Mingxiang's death, and we cannot rule out the possibility that she died by suicide or was killed by Liu Fulai's domestic violence. If Sun Mingxiang's death was caused by Liu Fulai, then Liu Fan killed Liu Fulai in a fit of anger in order to avenge his mother, so it seems more reasonable to explain, right? ”

"Then why did he dismember?" Director Ding asked puzzledly, "That's his mother's corpse, how can he do it?" ”

"The dismemberment of the corpse is supposed to facilitate the transfer of the corpse. The burial site is ten kilometers away, and it is difficult for a child, not an adult, to transport two intact bodies to such a distance. In desperation, he had no choice but to disassemble the body into several pieces, transfer them several times, and bury them. But ......" Xia Shi suddenly frowned, and said the question that pressed in his heart, "Why is the head of that female corpse missing?" Could it be that someone poached it? ”

"You mean the guy who gave us the coordinates?" Gu Song guessed Xia Shi's thoughts, but he had a completely different answer in his heart. He really couldn't think of what that rotten human head meant to others, but for Liu Fan, it was undoubtedly a precious treasure in the world.

Perhaps, the missing human head is inextricably linked to the previous serial murder case that occurred in R City. Thinking of a certain scene when he went to Dong Wei's house to do an investigation not long ago, Gu Song's heart couldn't help but feel a chill.

After inspecting the scene, Forensic Doctor Zhao and Xiao Tian took the personal belongings of Liu Fulai and his wife back to the city bureau for DNA identification to further confirm the identity of the two corpses. It's a pity that they searched Liu Fulai's house and didn't find any of Liu Fan's personal belongings.

However, when Xia Shi was investigating the "9.16 burglary and homicide case", he once asked his colleagues from the technical department to revisit the crime scene under Gu Song's reminder, and found a trace amount of dander tissue under the lid of the toilet in the victim's bathroom, which was suspected to have been left by the suspect Dong Wei. And Dong Wei's true identity is the son of Liu Fulai and his wife, which is equivalent to indirectly getting the samples that can be used for paternity testing.

The identification results showed that the two white bones in the barren mountains were indeed Liu Fulai and his wife who "disappeared" from Sanqiao Village more than ten years ago, and Dong Wei, the suspect who committed three vicious cases in R City, was the son of the two, Liu Fan.

At this point, many things have become clearer, but at the same time, there are also some mysteries that have never been answered.

The coordinates of the barren mountain burial body are an important clue left by the murderer of Li Baofang to the police, and his purpose is to let the police find out the truth of the case more than ten years ago and Dong Wei's true identity. Gu Song and the others completed the "mission" according to the murderer's prompts, but the clues seemed to be interrupted again when they arrived here, and Dong Wei's whereabouts are still an unsolved mystery.