Notes From A Criminal Investigation 8 Chapter 20

Owen, Dai Zhi, Zhang Jianbo and Lu Keying put on masks, hoods and gloves and were the first to enter the scene.

There was a dark brown stain in the corner near the sofa.

Lu Keying stood on the survey pedal, squatted down, pointed at the dark brown marks and said: "Zhao Daijun was lying here, his head was on the blood. His head was hit many times, how should I put it, it was like a watermelon that was hit."

Owen had seen the photos of the crime scene, and the details of the crime scene were completely imprinted in his mind. After arriving at the scene, the details that were already in his mind became more vivid and lively, and he said: "Zhao Daijun was lying naked on the ground, with his clothes placed in the corner of the sofa. The deceased was incontinent, and his lower body was burned and black. I noticed a detail, there was a fabric sofa in the living room of Zhao Daijun's house, and the sofa was covered with a sofa. The sofa cover was in a mess, combined with the fact that Zhao Daijun was naked, I think something must have happened to him on the sofa before."

Dai Zhi, as a scene investigator, has studied this series of murders countless times and is familiar with the scene. He explained: "I led the team to investigate the scene and extracted biological samples from the sofa cover. Unfortunately, although the sofa cover was very messy, no samples were found. It does not mean that there were no samples from the murderer, but no samples from anyone. Later, we found that the small cloth bag for garbage on the vacuum cleaner at home had been taken away. The murderer used the vacuum cleaner and took away the biological samples."