Jingjing collapsed in a pool of blood, and the blood had dried up. Her eyes were wide open, there was a bloody streak on her neck, and there were already some corpse spots on her face and body.

"She wasn't disfigured, she wasn't stripped naked, unlike the previous three deaths. Could it be that the murderer deliberately changed his modus operandi? Big A touched his chin.

Ling Yi shook his head. "Serial murderers use their methods of murder as a sign of their crimes, and they usually don't change."

"Is that someone imitating?" Big A continued to ask. Many famous murderers have fanatical imitators, but it is impossible to imitate 100% similar, there will always be some discrepancies.

"Not at this time." Ling Yi stared at the wound on his neck, which was also left-handed.

After the forensic examination, the mask is removed.

"The deceased had been hit the back of his head with a hard object, and the fatal wound was that the major artery was severed and he lost too much blood. Usually the corpse will be stiff nine to twelve hours after death, and the corpse spots will not disappear for seven or eight hours. She died between half past ten and twelve last night. A more accurate time will have to wait for the post-mortem report. ”

"In addition, some flesh and skin tissue was found in the fingernails of the deceased, most likely left by the murderer, and we will go back and continue to study."

……

An hour later, the evidence was collected at the scene.

"Team Yan, I'll go see if there is any surveillance footage of the murderer nearby." Ling Yi said.

"I'll go too." Big A followed her.

The two looked for it separately.

Half an hour later......

"How?"

Big A ran sweating profusely and shook his head. "The nearby traffic monitoring is broken, and some can't be filmed here. What about you? ”

Ling nodded slightly. "Almost."

The two of them planned to go back to the bureau first, and as they walked, Ling Yi suddenly stopped at the door of a small shop.

Under the eaves is a small camera, facing this blind spot.

"Boss? Boss? Big A knocked on the table.

The boss, who was napping, was woken up, yawned and asked lazily. "What do you want to buy?"

"What time is it open at night?" Ling Yi asked.

"Twelve."

Ling Yi and Big A looked at each other and smiled.

The two retrieved the surveillance video and returned to the bureau.

Ling Yixian and Yan Chen held a meeting to summarize the evidence, and Big A was responsible for watching the monitoring.

"How? Did you find anything? ”

Big A rubbed his eyes, "I watched for more than half an hour, and my eyes were almost blind, and I didn't see any suspicious people." Sleepy. ”

"I'll make you a cup of coffee."

"Thanks buddy."

She had just taken a step away.

"Wait! Isn't this Qin Yang? Big A shouted in surprise. Come back soon. ”

Ling Yi hurriedly put his head in front of the screen. Qin Yang walked into the community at half past ten, and hurriedly walked out at about eleven o'clock, half an hour apart.

This happened to be the time of Jingjing's death.

Ling Yi remembered the day he went to Dihao to investigate the case for the first time, Sister Jiao just asked Jingjing to greet Qin Sanshao well, they knew each other!

"The murderer is Qin Yang?" Big A looked shocked.

"What? You said that the murderer of Jingjing was Qin Shao? No way. Xiaoqing blushed in a hurry. You're crazy! ”

"yes, nonsense." Xiaomei chimed in.

"Then why did he just enter and leave the deceased's community at that time? Are there still fewer examples of crimes committed by human-faced beasts and well-dressed beasts? The more unlikely it seems, the more likely it is to be a murderer. From the fact that he was pestering Ling Yi, I could tell that he was a pervert. ”

"You're talking nonsense."

"Don't fight." Yan Chen walked over with a grim face. "Since Qin Yang is suspicious, bring him back to investigate."

Ling nodded. "I'll go with you."