"Concealed weapon?!" Everyone exclaimed.
The door was tightly locked, and the food was untouched. The only possible explanation was a concealed weapon.
"But there are no wounds on his body!" the forensic expert hurriedly said.
"Check carefully," Lin Chuan said solemnly. "The most likely possibility is a needle-like concealed weapon. Is there a pinhole on the body?"
"Yes!" Suddenly a forensic expert hurriedly said. "There is a red dot on the neck, this should be the injury caused by a needle-like weapon."
"Look for the weapon used!" Lin Chuan hurriedly said.
"We've already searched," the police officer shook his head. "There's nothing at the scene."
"Then there's only one possibility!" Lin Chuan frowned and said. "After the murderer killed, they took the concealed weapon back. By the way, did the surveillance footage show anything?"
"Nothing!" the police officer shook his head.
"You guys keep busy, Captain Zhang, let's go check the surveillance," Lin Chuan said.
