"My brother's relic tattoo is branded on his collarbone. The location of the gunshot wound overlaps by three millimeters with my brother's fatal wound. For such a suspect, I actually stitched up his wound on a rainy night."
Three years ago, flames from a chemical plant engulfed Shen Xuan, and the police determined that the eldest son of a family of forensic doctors committed self-immolation.
Shen Linyuan clutched half a copper coin in the palm of his brother's charred corpse and retrieved Xu Yan, who was shot and unconscious on a rainy night.
He saw that the flame tattoo on the man's collarbone matched the pattern of the copper coin, felt the outline of the burned coin on his lower back, and found his brother's bloody fingerprints on the inside of the old gasoline barrel where the green plants were kept.
"You lit the fire"
The yellowed diary reveals Shen Xuan's identity as an anti-drug police officer, and the damaged police badge points to Xu Yan's father who died in the line of duty
The real murderer's laughter split the memory: "When you were drunk and complained about your brother's disappearance, guess who was cleaning the wine glass?"
Purpose: The most deadly evidence of crime turned out to be the survival codes left to each other by the survivors.