The crackdown on organized crime began with the arrest of the mother-in-law.

Chapter 1292 Analysis Report, Key Clues

"Li Ran, deliver the report to Captain Li first thing tomorrow morning. Also, follow up on the testing progress of all samples, especially the DNA and fingerprint comparisons. Notify me of the results immediately." Zhang Lin closed his laptop, stood up, and rubbed his sore shoulders. "Although we haven't found the suspect yet, we have enough clues. As long as we follow the autopsy results and traces at the scene, we will bring the murderer to justice sooner or later and give the deceased some closure."

Li Ran nodded vigorously, her eyes resolute: "Don't worry, Teacher Zhang, I will keep a close eye on the follow-up tests and won't overlook any detail!"

As Zhang Lin left the autopsy room, night had fallen. Many offices in the Criminal Investigation Division's building were still lit, and investigators were still searching for the electric tricycle and the characteristics of the thief. Looking up at the night sky, the stars were sparse and the moonlight hazy. He silently said to the deceased, "Rest assured, we will definitely find the truth and make those who hurt you pay the price."

Meanwhile, in some corner of the city, the suspect, wearing a black jacket and a baseball cap, was unaware that every trace he left on the body and at the scene was being peeled away layer by layer by the forensic doctor's scalpel, weaving a net of justice that was quietly tightening around him.

The next morning at 8 a.m., the conference room of the Criminal Investigation Detachment was already full. At one end of the long conference table, Li Ming, dressed in a black police uniform, frowned slightly, with a thick stack of case files spread out in front of him; on both sides sat Xiao Yang, Xiao Sun, Xiao Wang, Zhang Lin and other core investigators, each with a notebook and case-related evidence photos and reports in front of them. The air was filled with a tense and serious atmosphere. The case analysis meeting for the Beishan Park decomposed corpse case officially began the moment the morning light shone through the window.

"Alright, everyone's here. Let's begin the meeting." Li Ming's voice broke the silence of the meeting room, his gaze sweeping over everyone present. "Regarding the case of the decomposed body found in Beishan Park, we've completed the initial on-site investigation, interviews with people in the surrounding area, and the autopsy. I've called everyone here today to summarize all the clues, especially considering the forensic autopsy results, and to focus on how to identify the deceased and the next steps in the investigation. First, Xiao Yang, please report on the details of the on-site investigation, including the traces and physical evidence collected, and your assessment of the scene."

Upon hearing this, Xiao Yang picked up the tablet in front of him, connected it to the projector in the conference room, and photos of the scene at Beishan Park immediately appeared on the screen. "Team Leader Li, colleagues, based on our investigation of the burial site at Beishan Park, the burial point is located in a secluded area next to the bushes on the north side of the park, a place rarely frequented by people. This indicates that the suspect is very familiar with the park's terrain and may have scouted the area beforehand." He clicked on the screen, switching to a photo of the burial pit. "The burial pit is about 30 centimeters deep, with neat, rectangular walls. Based on the soil traces inside the pit and the mud on the shovel, it is determined that it was dug with the red shovel found at the scene. This shovel has been confirmed as the stolen item from Zheng Bin, the owner of the electric tricycle. The wooden handle has cracks, which perfectly match the digging marks on the pit walls."

The screen then switched to photos of electric tricycle tracks and cigarette butts. Xiao Yang continued, "On a path 5 meters east of the burial pit, we extracted a set of size 41 sneaker footprints. The pattern is a common wavy design, with fresh soil on the edges, pointing downhill. We speculate that these were left by the suspect after burying the body. At the same time, under a pine tree near the footprints, we found a 'Yellow Crane Tower' cigarette butt. The filter had obvious teeth marks, and the tobacco was not completely burned, as if it had been smoked a few times and then discarded. DNA has been extracted from the cigarette butt and is being compared with the database. In addition, we also found wheel tracks from an electric tricycle beside the path, about 10 centimeters wide and 50 centimeters apart. Technical analysis showed that the tire treads were consistent with those of the 'Jinpeng' brand electric tricycle stolen from Zheng Bin. The tracks extended in the same direction as the footprints, proving that the suspect did indeed drive the electric tricycle to transport the body to the scene, bury the body, and then fled."

"Were any traces of any third party besides the suspect and the deceased found at the scene? Like other footprints, hair, fibers, etc.?" Li Ming suddenly asked, tapping his fingers lightly on the table. Xiao Yang shook his head, his tone somewhat regretful: "The soil at the scene was quite moist. Besides the suspect's footprints and tire tracks, we didn't find any other third-party traces. As for hair and fibers, the dense vegetation around the bushes caused a lot of interference, so we haven't been able to extract any valuable clues yet. However, in the soil of the burial pit, besides detecting soil components consistent with the shovel, we also found a small amount of gasoline residue. We're currently unsure whether it was carried by the suspect or leaked from the electric tricycle; we're conducting further tests."

Li Ming nodded, wrote down the keyword "gasoline residue" in his notebook, and then looked at Xiao Wang: "Xiao Wang, next you will report on the situation of the surrounding visits and the investigation of the electric tricycle, especially whether you have found any witnesses related to the suspect, or any new clues about the stolen vehicle."

Xiao Wang opened his notebook and cleared his throat: "Team Leader Li, colleagues, we've interviewed residents, shops, and people doing morning exercises within a 3-kilometer radius of Beishan Park, totaling over 120 people. We currently have two key leads. The first is from the owner of a convenience store on the east side of the park. She reported that around 3 pm last Wednesday, a man wearing a black jacket and a baseball cap came into the store to buy 'Yellow Crane Tower' cigarettes. The brim of his cap was pulled low, so we couldn't see his face clearly. After buying the cigarettes, he walked towards the park. This time, clothing characteristics, and the brand of cigarettes he bought all match the cigarette butts found at the scene and the descriptions of suspicious individuals by witnesses Deng Guojun and Lao Zhang. We speculate that this man is very likely the suspect."

He paused, then continued, "The second clue came from Old Zhang, a woodcutter. Around 3 PM last Thursday, he saw a man in a black jacket and a baseball cap digging a hole near the burial site with a red shovel on the back hill of Beishan Park. The man lied, claiming to be a park worker planting trees, and Old Zhang left without thinking much of it. Based on the characteristics of the shovel, this man is the suspect who used the stolen shovel to dig the burial pit in advance. This also explains why the burial pit was so neat. The suspect dug the pit in advance and then transported the body over to bury it."

"What about the electric tricycle? After Zheng Bin's vehicle was stolen, have you found any relevant driving routes or possible hiding places?" Xiao Sun couldn't help but ask. He was in charge of forensic examination at the scene and paid special attention to the electric tricycle, a key tool used in the crime. Xiao Wang sighed, his tone somewhat helpless.