crime profiler in the dark

The deceased this time was a high school student. According to his classmates, when he was going downstairs, he accidentally slipped and fell down the stairs. The front skull was hit, which caused the dural hemorrhage and died. The case of accidental death can be confirmed as the fourth case of serial homicide due to the appearance of the note.

Zhou Chengzu and Fan Guomao started the autopsy, while Bai Haolin stood aside. Although those bloody scenes still made him a little uncomfortable, compared to before, he was much used to it physically and psychologically.

"Hand bone fracture." Fan Guomao said while examining.

"Someone pushed him?" Bai Haolin asked.

"No, people who fall to their death from the stairs can easily cause hand bone fractures, and usually hit the ground head first." Fan Guomao said.

"That's right, the number of deaths and injuries caused by falling down the stairs every year is no less than that of car accidents." Zhou Chengzu said.

"So it should be an accident?"

"Whether it was an accident or not is up to us," Zhou Chengzu was a little dissatisfied with Bai Haolin's conclusion, "In my opinion, it was a deliberate murder disguised as an accident."

This conclusion is really rash.Bai Haolin sneered in his heart, of course he knew that Zhou Chengzu did it deliberately to divert the attention of the police, but unfortunately Zhou Chengzu didn't know that he had fallen into a trap carefully designed for him.

While they were doing the autopsy, Bai Haolin flipped through Zhou Chengzu's schedule on the table, wrote down the name of the first policeman who arrived at the scene, and then left the forensic office.

Bai Haolin found the two patrolmen on the dispatch list and asked them about the situation at the scene:

"So you were the first to arrive at the scene after hearing the dedicated broadcast?"

"Yeah, we happened to be patrolling around that school at the time."

"Have you touched the corpse since you arrived?" Bai Haolin asked again.

"I took his pulse, he was dead, and I called the hotline and asked them to send the medical examiner."

"That means you didn't notice if there was a note in the mouth of the deceased?"

"The duty of the patrol is to protect the scene, not to conduct an autopsy." The policeman shook his head.

"So have the students present checked it?" Bai Haolin continued to ask.

"As far as we know, no. Students these days are smart enough to know it's not wise to touch a dead body, so the scene is well protected."

"You also told the forensic officer about these things, right?" Bai Haolin asked tentatively.

"Yeah, he asked us, of course we have to tell him."

"I see, thank you." Bai Haolin sincerely thanked them.

Obviously, this is another case where Zhou Chengzu secretly put a note in the victim's mouth, pretending to be the fourth serial murder case, in an attempt to divert the police's attention from the No.3 victim. He got his wish.

Bai Haolin went to a place by himself.