"There are obvious cracks on the victim's nails on her right hand." She lifted the corpse's right index finger for Wu Zheng to see.
Wu Zheng squatted down again and looked at the victim's half-broken nails as he listened to her analysis.
"Look at the position of the corpse. It's in a kneeling position. There are no obvious signs of struggle, which means that the victim was forced into this posture by the murderer. The cracked nails most likely mean that the murderer's right hand was injured."
"Judging from the knife wound on the victim's abdomen and the length of the stockings on both sides, the murderer's dominant hand is his right hand. As for his size, an adult male who needs to restrain a young girl in her twenties with a fruit knife first is either not strong or lacks confidence in his strength. Therefore, I speculate that the murderer is relatively thin, and he's definitely not the tall and domineering type."