The clues Qiu Ruan can provide are actually quite limited.

It was already evening when the crime occurred, and the perpetrators were all "face covered," that is, wearing masks. Moreover, everyone was nervous and anxious when the assassination occurred. Naturally, they could not clearly see the suspect's appearance or even his physical characteristics.

clear.

It's already pretty good to be able to confirm that there are three people.

In other words, apart from verifying Su Ping's speculation that the victim was not driven upstairs but tricked into going upstairs, and that the direct perpetrators were three people, there was no other gain.

But this harvest is actually enough.

Because after Su Ping's guess was confirmed, they had a very clear direction. Cai Huijia's boyfriend.

They were dragged to the rooftop by Cai Huijia, and Cai Huijia thought that her boyfriend had prepared a romantic surprise for her. This was a crucial clue.

It's a pity that Qiu Ru'an doesn't know who Cai Huijia's boyfriend is.

According to Brother Song's investigation results at night, since Cai Huijia caused that farce, the boys in the school have stayed away from her.

And she seemed to have adjusted her strategy, no longer looking for a partner in school, but instead focusing on the Internet and started dating online.

So this so-called boyfriend should be the online dating partner, and he seems to be dating.

…

"Online dating..." Outside the ward, in the corridor, Brother Song sat back on the chair and said softly: "This requires investigation, which is easy to say but difficult to say..."

"Ah?" Qi Yuan was a little puzzled and couldn't figure it out, so he asked: "This shouldn't be difficult, right? Logically speaking, if it's an online relationship, wouldn't it be clear if you check her chat records on various social software?"

Brother Song shook his head gently: "Don't forget, she was able to have four boyfriends at the same time in school. God knows how crazy she would be online? What if she hooked up with more than a dozen netizens at the same time? How to check?"

Qi Yuan was stunned for a moment, opened his mouth wide, and was a little stunned.

Brother Song rubbed his temples and said: "Anyway, let's pass this news back first. It's a direction. Let's check it out."

Qi Yuan nodded, and then couldn't help but wonder: "If Cai Huijia's boyfriend killed the person, it might be out of emotional entanglement, which can be explained. However, stabbing the female counselor and creating the illusion of a supernatural event are

Why? Also, what does it mean to pour chicken blood on her dormitory and put a finger on it?"

"I won't tell you about the dormitory in advance." Brother Song shook his head, glanced at Qi Yuan, and said softly: "But, there has never been any evidence that the perpetrators who killed Cai Huijia and the others were the same group of people who stabbed the counselor."

"ah?"

"Although Team Su and Team Xun considered the two cases together when handling the case, this is just one of the possibilities." Brother Song said softly: "But they never said that the two cases would be investigated together.

"

"This..." Qi Yuan was a little confused: "Shouldn't we investigate together?"

"If they are investigated together and investigated together, there is also the possibility that the same gang of people committed the crime, but they have no intention of investigating the cases together, and they still go their separate ways." Brother Song explained:

"Didn't you realize that we have been focusing on the murder case of Cai Huijia and the others, while the attack on the female counselor was left to another group of colleagues, and Team Xun and Team Su didn't have much involvement?"

Qi Yuan nodded thoughtfully.

"Okay," Brother Song stood up, took out his cell phone, and said, "We have nothing to do here. Let's go back. Xiao Qi will drive. I'll give Captain Su a call."

"good."

…

At noon, Brother Song, Qi Yuan, Xun Mu and Su Ping met by chance in the cafeteria.

Brother Song and the others came forward to say hello, and when they saw that they were both frowning and saying nothing, Brother Song couldn't help but ask: "What's wrong, Captain Xun? What difficulties have you encountered in this case?"

"I just sent a new report," Xun Mu said softly: "Cai Huijia... is an HIV carrier."

"Ah?" Brother Song was shocked, and then asked: "How did you find out?"

"A trainee forensic doctor pricked his finger on bone stubble when he was suturing the body." Xun Mu said: "The little girl was a little worried, so the doctor immediately disinfected her. At the same time, he also said that the deceased did not seem to have a serious infection.

As long as you don't look sick and don't have hepatitis B or AIDS, you don't have to worry too much after disinfection.

But as soon as he finished speaking, he thought about what we told him that the deceased might have died from a relationship dispute, and he was not worried about it, so he quickly did a targeted test, and it was found that she was indeed HIV-positive."

Brother Song was heartbroken and quickly asked: "How is the little girl doing?"

"I'm crying." Su Ping said with a dark face: "Fortunately, after I disinfected her, I immediately sent her to the Centers for Disease Control and Prevention for blockade treatment and a routine checkup. She should be fine."

Brother Song nodded lightly.

Then, he added: "If Cai Huijia is HIV-positive, then her boyfriends who have had sex with her are likely to be infected as well.

By chance, he found out that he was infected with the disease. He was so frightened and angry that he might indeed make the decision to kill someone. As for the motive for committing the crime, the motive for the crime was found and established.

Then, can we combine Cai Huijia’s social software chat records with the CDC’s filing records to quickly identify the suspect?”

"It's difficult." Xun Mu shook his head: "The superiors pay special attention to the privacy protection of these people who have tested positive for HIV. Even if we need to obtain the filing records for handling the case, we still need to go through the procedures.

That would be fine if it were normal times, but recently, the relationship between our detachment and various units has become somewhat tense, and the health unit is the first to bear the brunt. In this case, they are uncooperative and want to block us. We can't get the registration for a while.

Unfortunately, they are not in the same system as ours. Even if I try to put pressure on them through the city bureau leaders, I can’t do it. I still have to spend a long time doing Tai Chi with them.”

"Why do you care so much?" Su Ping said impatiently: "No matter how talented Cai Huijia is, how many people can she chat with at the same time? One hundred or two hundred?

List this group of people, those who are local, those who are here, or those who have recently come to our Yuqiao, and then screen them out one by one, and check them one by one. Can you still not find them?

Besides, the severed finger and fingerprints will have to be locked by us sooner or later, and one of the perpetrators has been caught. Are you afraid that his accomplices will not be able to catch him later?"

"That's the truth." Brother Song nodded: "Then why do you two look so sad?"

"We are worried," Xun Mu said, "After the murder, will the murderer just stop doing it and spread AIDS in revenge?"

"Ah?" Brother Song swallowed: "It should...should not be the case, right? They committed the crime in a mask and destroyed the surveillance probe, which shows that they still have concerns in their hearts. They don't want the crime to be exposed, so how could they do this so unscrupulously?
Chapter completed!