Qiu Ru'an's clues are actually quite limited.

It was already evening at the time of the crime, and the perpetrators were all "covered faces", that is, wearing masks, and everyone was nervous and anxious at the time of the assassination, so naturally they couldn't see the suspect's physical characteristics clearly, and even their physical characteristics couldn't be said clearly.

It's good to be able to determine that there are three people.

In other words, apart from verifying Su Ping's speculation that the victim was not driven upstairs, but deceived upstairs, and the speculation 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 fairly clear direction - Cai Huijia's boyfriend.

They were pulled onto the rooftop by Cai Huijia, and Cai Huijia thought that her boyfriend had prepared a romantic surprise for her, which was a crucial clue.

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

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

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

Then this so-called boyfriend should be the online dating object, and it seems that he is still running.

……

Outside the ward of "Online Dating ......", in the corridor, Brother Song sat back on the chair and said softly: "This needs to be investigated, it is easy to say, but it is difficult to say that it is difficult to ......"

"Huh?" Qi Yuan was a little puzzled and couldn't figure it out, so he asked, "This shouldn't be difficult, right?" It stands to reason that if it's an online dating, wouldn't it be clear to check the chat history of her various social software? ”

Brother Song shook his head lightly: "Don't forget, she can do four boyfriends at the same time in school, God knows how crazy it will be on the Internet?" In case you hook 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 dumbfounded.

Brother Song rubbed his temples and said, "Anyway, let's send this news back first, it's always a direction, check it out." ”

Qi Yuan nodded, and then couldn't help but wonder: "If Cai Huijia's boyfriend killed someone, it may be out of emotional entanglement, and it can be explained." However, what about stabbing a female counselor and creating the illusion of a supernatural event? Also, what does it mean to splash chicken blood in her dormitory and put her fingers on it? ”

"Don't say anything about the dormitory beforehand." Brother Song shook his head, glanced at Qi Yuan, and said softly: "But, there has never been evidence that the perpetrators who killed Cai Huijia and them were the same gang as the perpetrators who stabbed the counselor." ”

"Huh?"

"Although the Su team and the Xun team considered the two cases together when handling the case, this is only one of the possibilities." Brother Song said softly: "But the two of them have never said that the two cases will be investigated together. ”

"This ......" Qi Yuan was a little confused: "Aren't you checking together?" ”

"The possibility of the same gang of people committing crimes also exists, but they have no intention of investigating the cases together, and they still belong to their own families." Songge explains:

"Didn't you notice that we have been focusing on the case of Cai Huijia's murder, and the attack on the female counselor was handed over to another group of colleagues, and the Xun team Su team didn't ask much about it?"

Qi Yuan nodded thoughtfully.

"Okay," Brother Song stood up, took out his mobile phone, and said, "There's nothing to do with us here, let's go back, Xiao Qi, you drive." I'll give the Soviet team a call. ”

"Okay."

……

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

Brother Song and the others stepped forward to say hello, and then saw that they were both frowning tightly and didn't say a word, Brother Song couldn't help asking, "What's the matter, Team Xun?" What is the problem with this case? ”

"Lao Yan just sent a new report," Xun Mu said softly, "Cai Huijia...... Be living with HIV. ”

"Huh?" Brother Song was shocked, and then asked, "How did you find out?" ”

"A trainee forensic doctor had his finger pricked by bone stubble while stitching up a corpse." Xun Mu said: "The little girl was a little worried, and Lao Yan immediately disinfected her, and also said that the deceased did not look like she had a virulent infectious disease, as long as there was no hepatitis B or AIDS, there was no need to worry too much after disinfection."

But as soon as he finished speaking, Lao Yan thought of what we told him, the deceased was likely to die of emotional disputes, and he was not very relieved, so he quickly did a targeted test, and it turned out that she was really HIV carrier. ”

Brother Song's heart twitched, and he hurriedly asked, "How is the little girl?" ”

"I'm crying." Su Ping said with a dark face: "Fortunately, after Lao Yan finished disinfecting her, she was immediately sent to the CDC for blocking treatment, and then for a routine examination, it should be fine." ”

Brother Song nodded slightly.

Then, he said: "If Cai Huijia is HIV-positive, then her boyfriend who has had sex with her ...... Guys...... It is likely that you will also be infected.

By chance, I found out that I was sick, and I was shocked and angry, and I could indeed make the decision to kill someone. In terms of the motive for the crime, it can be regarded as found and established.

So next, can we combine Cai Huijia's social software chat records with the CDC's filing records to quickly lock down the suspect? ”

"It's hard." Xun Mu shook his head: "For these people who have tested positive for HIV, privacy protection is particularly important, even if we need to obtain filing records due to handling cases, we also need to go through procedures."

If it is usual, it is just that, but recently, the relationship between our detachment and various units has been a bit stiff, and the health unit is the first to bear the brunt.

It's just that they and we are not in the same system, I just can't put pressure on them through the leaders of the city bureau, and I still have to play Tai Chi with them for half a day. ”

"What do you do with so much?" Su Ping said impatiently: "Even if Cai Huijia is capable, can she talk to several people at the same time?" A hundred or two hundred?

List these people, those who are local, those who have run through the present, or those who have come to our Yuqiao recently, and then screen them out one by one, and check them one by one, can they still be found?

Besides, the fingerprint of that severed finger will have to be locked by us sooner or later, and one of the perpetrators will be caught, and then you are afraid that your accomplices will not be able to catch it? ”

"That's exactly what happened." Brother Song nodded: "Then why do you two look so sad?" ”

"We're worried," Xun Mu said, "After the killing, will the murderer simply stop doing nothing and spread AIDS in retaliation?" ”

"Huh?" Brother Song swallowed: "It should ...... Probably not, right? They committed the crime in masks and destroyed the monitoring probe, which shows that they still have concerns in their hearts, and they don't want the crime to be exposed, so how can they do this kind of thing unscrupulously? ”