As the small door was close to the room, I first put on the shoe covers, head covering, and rubber gloves that had been prepared long ago, carrying luminol, tetramethylbenzidine, and Coomassie brilliant blue, to re-examine the scene. If I found any clues, I would secretly send them to He Xin.
Previously, due to environmental issues, I didn't dare to observe carefully, but now it's different. Those two rookie police officers probably can't do anything to me, and they are likely asleep by now. I carefully used the multi-band light source and side light to examine the area around the bed. Their bodies should now be at the nearby funeral home, as transporting them to the city hall would be too far.
Funeral homes usually have dissection rooms, even if the equipment levels vary, to facilitate the work of forensic doctors.
Although the bodies were gone, my keen sense of smell still detected a strong stench of decomposition, as well as some strange, unknown gases on the ground. I carefully squatted down, not daring to lie down, for fear of leaving my own traces at the scene.
With the multi-band light source on, I sprinkled some yellow wine, added seaweed ash and white onion juice, truly using the skills of both a forensic doctor and a coroner. Only then did I discover a strange glow under the bed.
The previous police officers probably hadn't found anything, and the Punishment Team should have also come afterwards, likely finding nothing either. I cautiously moved closer to the point of light, reached out to feel, and surprisingly found a luminous ball inside. It wasn't a night light function, but it had a battery installed inside. It looked like the kind of Christmas toy children liked to play with, but under the effect of my yellow wine, there was a blood reaction on it. This ball should have been outside originally. Could it have been kicked inside? Knowing that there was a cover on the bed, blood wouldn't have gotten onto the ball. Even if it had, the blood stopped halfway to the bottom of the bed. Moreover, the bloodstains on this luminous ball were drip-shaped, which couldn't have been acquired from flowing.
This means that the ball should have been outside when the incident occurred. Let alone how it ended up in my uncle's room, knowing they didn't have children. Unless it was left by a child from another family in the village, then it's hard to say. I can't conduct interviews conveniently now, as I am a detective. If the police found me investigating this case, it would be quite awkward.
Sigh, I feel a bit lost. I didn't expect my forensic investigation skills to be so powerless in certain situations. No wonder Director Zhang wanted to give me power, manpower, and resources back then. In terms of manpower, Liang Xiaoxia goes without saying. So, I can only work alone at this moment.
Finding no useful clues in the room, I had to collect the luminous ball in an evidence bag and then went to the living room. Although this case happened two days ago, every time I saw the sofa, I would still recall my uncle's terrifying appearance.
"Uncle! Don't worry, I will definitely find the murderer who killed you! And bring him to justice!"
I made up my mind, said in a low voice, and then resumed my investigation. I squatted down and carefully used the shadowless reflector tube and autopsy umbrella to search. Suddenly, I discovered some trace substances behind where the mutilated body was found, between the sofa and the TV cabinet. My nose twitched, and I smelled aluminum powder, as well as some burnt smell. Additionally, there were some scorched marks on the ground. I wondered if the corpse had been burned by aluminum powder.
This method can actually accelerate the decomposition of a corpse. The sole purpose of doing this is to make the forensic doctor misjudge the time of death. However, Xie Chuchu and Ling Xiaotao should be able to see through it. Using nitric acid and other substances can also achieve this effect.
We know that corpse decomposition involves two aspects: one is corrosion and decay, which can be achieved with chemical agents such as strong acids and bases, concentrated sulfuric acid, concentrated hydrochloric acid, nitric acid, caustic soda, lime, and potassium hydroxide, which can easily result in no remains. The second is decay, which relies on microbial activity to digest and decompose. The natural world, especially the corpse itself, is covered with a large number of corpse-eating microorganisms. Creating suitable conditions for microorganisms to survive and thrive, they multiply at a geometric rate and quickly cause decomposition. The main factors are temperature. Higher temperatures at normal atmospheric conditions accelerate decomposition, with around 30 degrees Celsius being optimal. Second, there needs to be appropriate humidity. The corpse itself contains 70% water, which is suitable for microbial growth. However, if the climate is too dry, the corpse quickly dries out, making it unsuitable for microbial reproduction. Third, there needs to be a certain amount of air. The decomposition of corpses is mostly carried out by aerobic bacteria, which require space. In summary, chemical drugs are fast, while natural decomposition is slow, and both can be effective.
Thinking about it, following some trace elements, my keen sense of smell was activated again, and I saw some more powder on the windowsill. I collected it, which seemed to contain copper and coal. The person carrying these substances left through the window. There were some faint shoe prints on it, and although very indistinct, the Punishment Team should have discovered them.
If it weren't for the fact that the surveillance here was all destroyed, the forensic investigators might have found something else, but my keen sense of smell can also find some clues.
After taking photos and collecting the evidence, I carefully moved outside. Tracing some soil from outside the window, I suddenly discovered some strange liquid traces on the grass. Judging by its color, I was quite surprised at the time and quickly squatted down, taking out a test strip for semen. It showed positive. Damn it, what's going on?
Observing the surrounding grass, it seemed like someone had been sexually assaulted here. Many clumps of grass were trampled down, and a distinct human silhouette appeared in the mud. I took photos. Feeling that I had gathered enough, I packed up my findings and sent them to He Xin. Of course, my identity was hidden, but that guy is very smart. He will definitely pretend that he found the clues with the investigators to help me.
Perhaps Liu Yuning would be suspicious, but she would also pretend and say something like, "Oh, you've made some progress, He Xin."
After sending the information, I left my uncle's house and prepared to find Liang Jingchu. I thought to myself that I couldn't meet him under the identity of He Sheng. I could only continue to meet Liang Jingchu as a friend of He Sheng. I sent a message: "Hello! Are you Liang Jingchu? I got your number from your maternal cousin. I am his friend, Cao Daming, a detective. I am helping the police investigate your parents' case, so could you meet me?"
Liang Jingchu quickly replied: "Detective? Really? Then all right! Can you really help me?"
"No problem, I will do my best. Where are you now? I'll drive over!"