As soon as the plot of the principal's office on the 3rd floor of the teaching building ended, the interrogation of the multi-purpose classroom began, and this time the interrogation was aimed at 6 campus security guards.

Among them is Mader, who has fought many times with Black Abyss and Fat Man.

In the video, Hua Nana is direct evidence, the security guard has his back to the camera and can't see his face clearly. Only 6 people can be found to ask separately.

Simin High School has 6 security guards in shifts.

Mader is on the day shift and is responsible for campus security from 5 a.m. to 5 p.m.

......

Kurobuchi and the fat man lay on the door and eavesdropped on Mader's interrogation in the room.

......

"Made, what is your relationship with Hua Nana from the third (2nd) class of high school?" Xiang Nan held up a photograph and interrogated with a blank face.

"I don't know." Ma De glanced at the photo, it was an artistic photo of Hua Nana, very beautiful, anyone would fall in love with this innocent and arrogant cutie, but inside......

"Then why do some classmates see you often meeting in private? What exactly is your relationship? ”

Ma De asked Xiang Nan, "Who saw that?" ”

"I'm a school security guard, I work the day shift, and my colleagues and I are responsible for the students receiving express delivery and receiving takeaways, so it's normal to have more contact with individual students who like to consume and buy things and order takeout."

"And I also do it for the students to send out any express packages, not only that," Ma De crossed his hands, held his chin at the bottom, and smiled: "The classroom and dormitory are broken, and I help them deal with the rats and cockroaches that come in." ”

Xiang Nan's face showed a hint of solemnity, this person was much more difficult to deal with than he imagined.

He whispered a few words in Gao Xiaoxi's ear, and looked up at Ma De again.

"Since you don't know Hua Nana, why does she have a call history with you on her phone, and more than once, and the call is also very long, what are you plotting?"

The trainee forensic doctor quickly returned, with a few more things in his hand.

"This is Hua Nana's mobile phone, we called up her call records for nearly 3 years in the school, and screened out your number, you see, you have been in frequent contact in March 28 and these two months."

"At other times, there is basically no contact, and if, as you said, these students ask you for help, then the frequency of contact should be very consistent, rather than being particularly close at one time and other times as if they don't know each other at all."

"And your shift time has always been daytime, that is, from 5 am to 5 pm, but more than 90% of your contact with this female classmate is at night, please explain what the reason is."

Hua Nana is a rich second generation, she especially likes to buy all kinds of items online on weekdays, at least 3 packages a week for her, dozens of them at a time, she is definitely a figure in the school, she is beautiful, and there are a lot of admirers around her girlfriends, and she is the focus of attention wherever she goes.

Note that there are not a few students in her, so her words and deeds can be corroborated by her classmates.

And Hua Nana is not a scheming girl, and she is not very good at hiding herself. In her mind, she always thought that no matter how much trouble she had, his father would be able to settle it with money.

Therefore, no matter how powerful Ma De is and how he has anti-detection methods, when he encounters a pig teammate like Hua Nana, there will always be a place for him to blow up.

Xiang Nan is not in a hurry, and he is kind and tempting.

"Then, you said that the students went to the doorman to find you to send and receive couriers and takeaways, even if you contact at night, it doesn't matter, then Hua Nana's figure should appear in these locations, but we also retrieved the video surveillance footage of the last three months, and you are not in the monitoring range at all for a period of time before and after you and Hua Nana contacted by phone."

Ma De did not explain this issue, because he knew that these could not be strong evidence that he had killed four female students, at most it proved that he and Hua Nana had an ulterior relationship.

He began to smile, the corners of his mouth on the right side curled a little more than the left, and the left and right sides of his face looked like he was smiling, while the other was expressionless, which was extremely weird.

"The 4 students fell from the building and they weren't on my shift, so why don't you focus on the 3 guys who work the night shift and waste that time on me."

The school has provided dormitories for the security guards, which are very close to the campus, just one block away.

If a security guard returns from outside the school at midnight to commit a crime in an abandoned school building, it must have passed through the doorman.

In addition to the 12 campus surveillance, there is also an off-campus surveillance, which is facing the school gate.

Mader was not in a hurry at all, because he was not at school at all at the time of the crime.

Xiang Nan understood that it would be impossible to pry Mader's mouth open in a short time, so he changed the direction and continued the interrogation.

"I heard your principal Xu Guofeng say that you are the only one who has the key to the abandoned teaching building, so how do you explain how these 4 girls went upstairs, and how Hua Nana and this person dressed as a security guard stood at the corner of a staircase in this photo."

"Videos and photos really can't tell who the person in the security uniform is, but they can tell exactly where they are from the background where they are standing. This painting is only available at the staircase on the 7th floor of the abandoned school building. ”

"Please explain."

This time Mader smiled more confidently and boldly, looking at the two police officers who interrogated him like a fool.

"You're asking these questions really idiotically, I'll hang the key on the wall of the guard's room, anyone can get it, how do I know which security guard took it down while I'm on patrol."

"It's also possible that you can use a mold directly with a handful, and you can use it at any time."

"There are also security uniforms, who said it must be one of the 6 of us, the security uniform school sends us two sets of changes every year, so they will not make it now, but order many sets in advance, these uniforms are only 3 sizes, and the school orders a lot of them every time, so the price is cheap."

"Hahaha, let me tell you, the excess is stored in a small warehouse in the student union office. If you don't believe me, you'll find out if you search for it. ”

"As far as I know, the door of that small warehouse is usually unlocked, who would notice that one or two sets of clothes are missing, right?" Ma Dese stared at Gao Xiaoxi's exaggerated curves with a very aggressive gaze.

Gao Xiaoxi was very uncomfortable with him, and got up in shame to check the uniform.

......

Kurobuchi and the fat man hurriedly hid around the corner, he glanced at the fat man, and the fat man nodded and quietly followed the woman away.

......

Facing the old and cunning Ma De alone, Xiang Nan felt that although he had been working in the police post for nearly 10 years, he was still a little unbearable.

He pulled out a piece of paper from the few pieces of evidence that Gao Xiaoxi had brought in earlier.

It was a certificate, a door-to-door certificate issued by the Taoist temple who came to the school a year to do business, and a detailed account of the collection service.

The certificate, like the rest of the evidence, was contained in a transparent plastic bag, and was now held south in his hand, and the front of the front was placed in front of Mad.

"You should be impressed by this proof, right?"

Ma De didn't quibble, nodded honestly and replied: "Yes, it has my signature on it, and I also asked them to do this ceremony, what's the problem?" ”

Xiang Nan didn't expect the other party to be so direct, he was a general, he was speechless for a while, and paused for 2 seconds before reacting, and said: "Then how can you find someone to do things, this is not within your scope of responsibility." ”

"As far as we know, after Xia Wanwan's death a year ago, no parents came to make trouble, right?"

"I asked the Taoist chief in charge of this matter at the Taoist Temple, is it your own personal behavior that you paid for asking them to do the work?"

"If you don't have a ghost in your heart, why would you spend this money to do a ritual for an unrelated person?"

Although the cost of inviting a Taoist priest to do the ritual is not much, it is a large expense for a security guard walking on the food and clothing line.

Ma De fell into memories and was silent for a long time before he spoke: "This police officer, you just asked me if I knew the female student named Hua Nana, I am indeed not familiar with it, but I know Xia Wanwan, and the relationship is quite good." ”

Xiang Nan knew that there was a story in it, and made a gesture of invitation to the other party to show that he was listening.

Xia Wanwan and Xia Miaomiao, two sisters, are twins, they are transfer students, and they entered the first (2) class of high school in the second semester of their freshman year.

The two sisters' backgrounds were a bit bumpy, they lost their parents when they were very young, and they were adopted.

The people who adopted them originally planned to have only one, but they were so good that they would rather stay in the orphanage than be separated, and the couple had no choice but to adopt them together.

No one expected that the two sisters had just arrived at their new home and enjoyed a happy life for less than a year, and their adoptive mother became pregnant unexpectedly.

The arrival of a new life ruined the future of the two sisters, and the adoptive parents became more and more disliking them, thinking that they were redundant, and even wanted to send them back to the orphanage.

But it doesn't work.

The adoptive parents began to torture and abuse the two.

The two sisters grew up until they entered high school, and the school knew about their special situation, and out of humanitarian care, they waived all the fees for studying, and agreed to live on campus during the winter and summer vacations.

In fact, there are not a few people who stay in school during the winter and summer vacations, there are more than a dozen repeat students in the third year of high school who live far away, 4 young teachers who have just graduated a few years ago, an old couple in charge of campus hygiene, and two commissary owners, more than 20 people in total.

And the twins dance well and play the piano well. Although the abandoned school building no longer allows students to hold classes, many functional classrooms are still preserved, such as the dance rehearsal room on the 7th floor.

On weekends and holidays, the two sisters went to the dance rehearsal room to practice, one played the piano, and the other danced to the beautiful music.

And at that time, it was the security guard Ma De who was responsible for opening the door for the two.

"After Xia Wanwan fell to death, none of their adoptive parents were willing to come to the school to communicate about the future, and they and their classmates couldn't get in, since I know them. It's normal to do what you can for Xia Wanwan, right? ”

"Officer Xiang, if your friend dies and is in the same situation as Xia Wanwan, will you help?"