"Clues come from the most overlooked details on the surface, so what the eye sees is not necessarily the right thing, but it's the most obvious."

Su Ziqian nodded as if she didn't understand, she looked at the familiar sister in front of her, how could she suddenly feel that her sister had become so tall!

Ning Mingyue felt Su Ziqian's gaze, but just shrugged her shoulders, the work of the Archives Bureau after graduation gave her the most access to criminal files, which is incomparable to a completely inexperienced little girl like Su Ziqian.

After the two finished speaking, they took the elevator at the same time and prepared to go downstairs, Ning Mingyue lowered her head and pondered, and so did Su Ziqian.

According to the existing clues, the portrait of the murderer can only be very shallow, the murderer used the elevator to kill, indicating that the structure of the elevator is very understood, the murderer can be initially locked in, elevator cleaners, elevator maintenance workers, elevator monitoring personnel, and patrol security.

These staff members all have a very sufficient knowledge of crime theory, and according to the information provided by Sister Luoya, the security guards are very suspicious.

It's just that after the murderer killed the victim, he returned to the scene to retrieve the tools of the crime, leaving no traces at the scene, which is simply incredible, the whole case is seamless, there are no flaws at all, and professional criminals may not be able to do it so perfectly.

This also fully shows that the murderer's IQ is very high, and his grasp of details is also very meticulous, this person may be very interested in detective crime-solving novels and movies, so the administrator of the library reasoning books is also suspicious.

As far as the identity of the deceased is concerned, ordinary cleaners have no possibility of robbery and murder, which is nothing more than love murder or vendetta.

After analyzing it in this way, the security guard's suspicion is very big, he is the person who has to use the elevator every day in this building, and as a security guard, his strength is definitely very large, and it will be very simple to subdue Li Li, as for the motive for killing, it seems that he has to wait until he sees this security guard to make a breakthrough.

The two returned to the first floor of the building, but they all had a tacit understanding and did not leave, but walked straight to the security room.

Somewhat expected.

Security guard Xiong Daquan is a majestic man, Ning Mingyue is close to one meter seven tall, standing in front of Xiong Daquan like a child.

After Ning Mingyue explained his intentions, his face suddenly became hideous, and he suddenly stretched out his hand, Ning Mingyue didn't check for a while, and was almost pushed down, Su Ziqian behind him subconsciously pulled her, but the incident happened suddenly, and the two of them almost fell together and ate.

Su Ziqian was very angry, looking at the fierce security guard in front of her, her hideous face made her even more suspicious if this was the murderer: "Hey! What are you doing! It's just a question of two words, why are you so excited? Could it be that you have a weak heart? ”

As soon as Su Ziqian's words fell, she saw Xiong Daquan glaring at her with his bloodshot eyes, she subconsciously trembled, it was still a hot day in July, and she was a little chilly at the moment.

Yes, if Xiong Daquan is really the murderer, then it is too dangerous for the two of them to stay alone in the same space with him now.

Ning Mingyue stood up from the ground, glanced at the panicked Su Ziqian, and couldn't help but sigh in her heart, she was really a pig-like teammate!

Ning Mingyue's mind was spinning rapidly, and she pulled Su Ziqian's footsteps and slowly moved towards the door without moving, who knows, Xiong Daquan, who was about to go crazy, actually calmed down, and then snorted in a rough voice: "If you have anything to say, ask quickly." ”

Ning Mingyue was taken aback, and immediately looked at Xiong Da who had calmed down, this was naturally the best.