As soon as he finished speaking, Mr. Zhao clenched his fists and made the motion of striking his own jawbone.
Suddenly, Mr. Zhao said, "I once studied combat skills at the police academy. Punching the jawbone can indeed dislocate it, and the skin may not show any damage."
Jiang An lowered his head to examine the victim's jawbone.
"Although there's no visible skin damage, bone damage can still be distinguished."
"The connections between the mandible and maxilla are already dislocated; the killer must've used considerable force."
After a long silence, Jiang An continued, "That's why there are so many scratch marks on the walls at the crime scene left by the victim."
"But the neighbors didn't hear any obvious calls for help."
"All because the male victim's jawbone dislocation made it difficult to open his mouth, preventing him from speaking normally."
Hearing Jiang An's explanation, Li Hongbing and Mr. Zhao suddenly realized.
