crime profiler in the dark

While flipping through the case materials, Bai Haolin changed his mind, trying to find clues. Just when he was engrossed in his thoughts, the phone rang suddenly.

"Hello." Bai Haolin answered the phone.

"Doctor Bai, it's me." It was Yi Yunzhao, "I was at the apartment of victim No. 3, and I just found out something interesting."

"What's the matter?" Bai Haolin, who was about to tell him that the case had been transferred to the first office, swallowed his words back.

"It's a security guard. Although a colleague asked him to record a statement before, when I questioned him again, I found that his expression was different. After asking a few more times, his speech became hesitant."

"What is he hiding?"

"Although the woman claimed that she was not married and did not have a boyfriend, there was a man who often sent her home, sometimes leaving in the early morning of the next day, and the night before the incident, the man was at around nine o'clock. Appeared, as for when he left, he didn't pay attention."

"Why is he unwilling to tell the police about such an important matter?"

"That man once gave him a sum of money and told him not to tell anyone that he had been here." Yi Yunzhao said unexpectedly.

"An extramarital affair?" Bai Haolin murmured.

"I watched the previous surveillance video. Every time he entered and exited, the man would deliberately lower his head. I can only roughly judge that his height is between 1.7 meters 1.7 and [-] meters [-]."

"What about the surveillance video on the day of the incident?"

"The monitor broke down ten days ago."

ten days ago?Just in time for the first case?Will it be such a coincidence? ?Bai Haolin thought to himself.

"Recalling the first case now, it was almost ten days ago. Is this really just a coincidence?" Yi Yunzhao expressed the doubts in Bai Haolin's heart.

"Indeed." Bai Haolin agreed with him.

"Not only that, everything in the victim's house was wiped, but the first two victims were not, and there were even obvious fingerprints on the murder weapon in the second case, although no match was found."

After listening to Yi Yunzhao's words, an idea suddenly appeared in Bai Haolin's heart, an idea that overturned all his deduction!

"Doctor Bai, I was thinking that this case might not be a serial murder case at all!" Yi Yunzhao said seriously.

Bai Haolin agreed with Yi Yunzhao's statement. Leaving aside the note, the evidence collected from the scene and the circumstantial evidence of the victim's relatives showed that the first case was definitely a suicide, and the second case was an impulsive murder without any suspense.Now imagine if the note existed only for this third case?That is to say, someone deliberately faked a serial murder case and shifted the police's attention to a non-existent serial killer in order to cover up the crime he committed? !