Disguised as Hirakawa Tomohiro, Tamazawa Shuxin was investigating a case with Division One. "The time of death is between nine-ten and nine-forty in the evening. It looks like asphyxiation, but preliminary examination points to cyanide poisoning." "There is something else."
"The binding used for this seemingly deep strangulation mark has a slip knot, which at most would cause unconsciousness due to hypoxia. The victim was poisoned during this window, leading to death while unconscious, and the color of the lips is now beginning to darken gradually."
"Mr. Hirakawa, it's exactly as you said!" Takagi Wataru watched as the color of the victim's lips grew deeper. Tamazawa Shuxin nodded. "And the site of poisoning should be the back of the neck; there are obvious traces of an old injury here, which is easy to conceal and acts faster."
Chapter 109