Attending ex-girlfriend's wedding, arresting the groom's officer on the spot

At 6 p.m., the investigation of the warehouse continued. Yang Lin and Yang Sen expanded their search area around the body, trying to find more clues; Wang Shuai, meanwhile, checked the logistics park's personnel registration records and entrance surveillance footage in the security room, screening for recent suspicious individuals. Lu Chuan stood beside the cordon, looking at the warehouse before him, knowing that the investigation into this murder case that occurred in an unused warehouse had only just begun. Who was the deceased? Why did the suspect hide the body in the logistics park warehouse? And who was the man in the blue overalls? These questions needed to be answered by examining the traces at the scene and conducting subsequent investigations. But he firmly believed that with meticulous investigation and patient screening, the truth of the case would eventually be revealed, and justice would not be absent.

At 6:15 p.m., Lu Chuan walked to the door of warehouse number 13 and looked at Yang Lin and Yang Sen, who were still busy inside, and called out: "Yang Lin, Yang Sen, don't just focus on warehouse number 13. Check warehouses number 12, 14, and 15 around here as well, as well as the passage between the warehouses and the west wall. Expand the scope of the investigation. Maybe we can find traces left by the suspect when he moved the body."

Upon hearing this, Yang Lin, who was collecting samples from plastic bottles, straightened up and wiped the sweat from his forehead: "Okay, Captain Lu! The preliminary investigation of warehouse number 13 here is almost done. Now let's go to the surrounding warehouses and passageways to investigate, focusing on tire tracks, footprints, fibers, and other clues that may be related to the suspect."

Yang Sen carefully put away the evidence bag, slung his investigation bag over his shoulder, and said, "I'll mark the scene of warehouse number 13 to prevent the traces from being destroyed during the subsequent secondary investigation. Then we'll start from warehouse number 12 and check in order, finally checking the west wall."

The two men walked out of warehouse number 13. The setting sun was slowly sinking outside the police cordon, casting long shadows across the logistics park. Warehouse number 12 was adjacent to warehouse number 13, and the locks on the doors were also intact. Yang Sen took out a spare key he carried with him—it had just been delivered by Zhang Jianjun, the logistics park manager, to facilitate the police investigation of the vacant warehouses.

With a click, the door to warehouse number 12 opened. It was empty, containing only rows of dusty shelves. The air lacked the stench of warehouse number 13, carrying only the musty smell of dust. Yang Lin switched on his investigation light, the beam sweeping across the floor: "Warehouse number 12 looks like no one's been in a long time. The dust on the floor hasn't been disturbed. First, check for tire tracks. If the suspect used a trolley or tricycle to move the body, they might have left marks."

Yang Sen squatted down, gently brushed the dust off the ground with his fingers, and shook his head: "The dust is intact, there are no tire tracks or footprints, it seems the suspect has not entered warehouse number 12." The two then checked the doors, windows and ventilation windows of warehouse number 12, and found nothing unusual, so they locked the door and went to warehouse number 14.

The situation in warehouse number 14 was similar to that in number 12; the idle shelves were covered in dust, and there were no obvious marks on the floor. But when Yang Lin's survey light swept across the passageway leading to the warehouse entrance, he suddenly stopped: "Yang Sen, look here!"

Following the beam of light, Yang Sen saw two shallow, parallel marks on the floor of the passageway between warehouses 14 and 13. The marks were about 15 centimeters wide and 60 centimeters apart. The dust on the surface had been rubbed away, revealing the concrete floor underneath. "These look like tire tracks!" Yang Sen quickly walked over, squatted down, and examined them closely. "The tracks are continuous, extending from the west wall to the entrance of warehouse 13, and there are obvious rubber friction marks on the edges of the tracks, so they should be left by rubber tires."

Yang Lin took out a ruler and measured the size of the marks: "15 centimeters wide and 60 centimeters apart, like the size of a small handcart wheel—the handcarts used to transport goods in the logistics park have wheels of about this size. Look at the direction of the marks, from the wall to the entrance of warehouse number 13, it's a straight line. The suspect probably used a handcart to transport the body from outside the wall into warehouse number 13!"

Yang Sen followed the tire tracks towards the west wall. After walking about 20 meters, the tracks suddenly disappeared next to a patch of grass. "The tracks stop here," Yang Sen said, parting the grass to find a patch of soil on the ground that was a different color from the surrounding area, brown in color, similar to the soil he had found under the ventilation window of warehouse number 13. "The soil here is similar in composition to the brown soil in warehouse number 13. The suspect may have loaded the body onto the handcart here and then pushed it to warehouse number 13, so the tire tracks started from here."

Yang Lin crouched down and carefully searched the grass. Suddenly, his eyes fell on a dark fiber hanging on a blade of grass: "Yang Sen, there's a fiber here! The color is the same as the fiber found next to the body in warehouse number 13, both are dark brown, and it looks like it was snagged on a pair of overalls." He carefully picked up the fiber with tweezers and put it into an evidence bag. "This fiber was found where the tire tracks disappeared. It's very likely that the suspect's clothes got caught on a blade of grass when he was moving the body."

The two continued their investigation along the wall, and when they reached a damaged section, Yang Sen made another discovery: "There's a gap in the wall here, about 1 meter wide and just high enough for one person to pass through. The barbed wire at the gap has been cut, and the cut is very fresh, as if it was cut recently!"

Yang Lin leaned closer to examine the broken edge of the wire mesh: "The broken edge is not rusty, the edges are very sharp, it was definitely cut recently, and there are obvious trampling marks on the ground below the gap, the soil has been compacted, and there is also a blurry shoe print, the size of which is about the same as the size 42 shoe print in warehouse number 13!"

He took out his camera and photographed the gap, trampling marks, and blurry shoe prints: "The suspect must have entered the logistics park through this gap—first moving the body from outside the wall to the gap, then pushing it along the passage to warehouse number 13 with a handcart, and then moving the body into the warehouse. In this way, the wheel tracks at the entrance of warehouse number 13, the trampling marks and shoe prints at the gap, and the drag marks inside the warehouse form a complete transfer route!"

Yang Sen nodded and added, "Moreover, the brown soil at the gap is consistent with the soil under the ventilation window of warehouse No. 13 and next to the grass in the passageway of warehouse No. 14, indicating that this soil came from outside the wall. The suspect brought it in from outside the wall, which further proves that he entered the logistics park through the gap."

The two then examined warehouse number 15 and found nothing unusual. They returned to the entrance of warehouse number 13, just as Lu Chuan and Wang Shuai walked over. "Team Leader Lu, Team Leader Wang, we found tire tracks in the passageway between warehouses 14 and 13, and also found a newly cut gap in the west wall with trampling marks and blurry shoe prints. We also found a dark fiber identical to the one found near the body!" Yang Lin reported excitedly. (End of Chapter)