"Captain Lin?" 』
Of course Liang An was not really puzzled, he just wanted to act surprised out of social etiquette.
"Are you talking about Lin Yun?" 』
"right. 』
If it weren't for this perfect time, it wouldn't be surprising in itself for Lin Yun to ask Song Qiaoyu if he had been to Sangjing Mansion. Although Song Qiaoyu, as a criminal police officer, is a marginal figure in the investigation, and his usual role is more like a witness in danger or even a suspect's bodyguard, after all, the deceased in the Sangjing Building case was his own mother.
Even if colleagues tend to go to the grave rather than the death scene for various reasons to express their condolences, as a biological son, according to the logic of normal people, he should at least go and take a look.
But Song Qiaoyu is really not such a considerate person.
Although this guy is not indifferent, formalism and sentimentality obviously do not occupy that much of his brain. He is especially not the kind of guy who has to "visit holy places" in memory of his elders. Song Jing himself, who should be remembered, would not care about this formality.
——Based on Liang An’s understanding of Captain Song’s story, which mainly came from other people’s reports, this good-looking detective guessed that he was more inclined to bury this dark history of his own sacrifice deep underground. After all, no matter how unique the ending is, there is always a better way when it becomes a hindsight.
To sum up, Liang An can completely understand the fact that Song Qiaoyu has never been to Sangjing Building, but he cannot understand why Lin Yun chose this time to encourage Song Qiaoyu to come over.
The problem is that Lin Yun seems to have deliberately sent Song Qiaoyu to disrupt the situation, but Song Qiaoyu, who was instigated, had a clear algorithm for the priority of multiple instructions from different people, and did not hesitate to tell Liang An his movements, which should have been kept hidden. The causes and consequences, as well as the instigators behind it.
...That's a little funny.
Understanding this, Liang An, who was always prepared for danger in times of peace, first subconsciously checked whether there was anyone who in Song Qiaoyu's eyes would have a higher priority than his immediate superior. He felt relieved when he could roughly judge that the person in the answer would have no influence on his plan.
"There will be people filming near Sangjing Building from today to tomorrow. There are so many people there. You can explain the situation to the security guard at the south door on the first floor." If you really have no other tasks, I won't stop you. 』
He didn't intend to interfere with what Song Qiaoyu did, he could only give suggestions. Unlike other police officers, as a son, Song Qiaoyu's actions, whether investigating or expressing condolences, have natural rationality - besides, without Zhang Yinsheng's step, Song Qiaoyu would really only be able to take a stroll.
By the way, he continued what he had seen before and sent a message to Yan Zhiyuan.
“There is more than one path. 』
Song Qiaoyu didn't respond after that, and Liang An also had time to truly confirm some of the speculations he had repeated in the past on the top of the rooftop on the 28th floor. A few hundred square meters of space is enough for him to do some research, and the most suspicious parts have actually been indicated by him through the floor design drawings. Most of the options, both absurd and not absurd, were also discovered during the police investigation four years ago. Eliminate them one by one.
All real-life cases that eventually become unsolved cases cannot be as extreme as fiction. They are completely based on precise and precise tricks, so that all events are summarized as an action with the purpose of killing. The reason why unsolved cases become unsolved cases is that except for the lack of the most basic criminals and physical evidence, the most likely scenario is that it went astray, which is why Liang An proposed another possibility to Yan Zhiyuan long before he went to the crime scene in person.
Because he concluded:
The investigation that ended four years ago may have reached a stalemate not because of the police officers' negligence, but because of a common-sense misunderstanding. What he needs to prove now is the possibility hidden in the impossible.
What he wanted to assume in advance was that there was indeed an unshown secret passage from the twenty-seventh to twenty-eighth floors, excluding all impossible options. This was the only solution anyway.
It's just that this answer is covered up by all kinds of impossibility and accident.
Liang An reviewed the doubtful points he had listed and crossed the rooftop to search for various spaces that could become "hidden stairwells". He found no results from beginning to end. Until the last one, it was an option that was absolutely close to a fantasy.
The first time he thought of this possibility, even he wanted to laugh.
But this did not interfere with Liang An's finding the elevator records he had taken from the case file.
In any high-rise building, when it comes to the "cavity" that can "connect up and down", the elevator shaft will always be an inescapable topic. In addition to the inside of the elevator, which is well known for going up and down the stairs, there is another place that is almost never seen and almost inaccessible to people.
Liang An arrived at the elevator shaft. There is no elevator on the twenty-seventh floor and you can only go up and down by stairs, but there is one on the twenty-sixth floor - which means that there is a reserved space on the design drawing.
But he also knew something crucial.
...In any case, looking at it now, this is also an "impossibility".
The reason is very simple: although the elevator has records, it has reached the twenty-sixth floor below the twenty-seventh floor before the time of Song Jing's death. There is only one suspicious time in total.
It was the weekend when the incident occurred. Most of the employees in the Sangjing Building went home to rest, and the elevators were almost unused throughout the afternoon - I say almost because the security guard on the floor did once go to the 27th floor, but at that time Similar to the elevator, it stopped at the twenty-seventh floor and put it aside. Five minutes later, it reached the twenty-sixth floor, and then went all the way down...
This is a fixed patrol route that is completed by different security guards at irregular times every day.
According to the elevator system records, the next half of the elevator stopped at the twenty-seventh floor until an employee who rushed back to work overtime pressed the button on the first floor to recall the elevator, and then wandered into the office area from the first to the fifteenth floor.
For a period of time before and after the incident, neither the unidentified murderer nor Song Jing himself, seemingly out of a tacit understanding for some other reason, did not use the only elevator that can lead to the twenty-sixth floor of the building. Only a few hours after Song Jing's death, Lu Wenkang took the elevator to the twenty-sixth floor in a grand manner. He immediately went upstairs and became the first person to discover Song Jing's body.
In fact, this is the most reasonable part of the entire case. Perhaps because the previous theft occurred on a high floor, the density of surveillance around the elevator was the tightest in the entire building. Not only is there one inside the elevator itself, but it is also fixed at the door to cover the entire area.
Including Song Jing - if she wanted to hide herself from others, taking the stairs instead of the elevator would definitely be her first choice. The surveillance video retrieved at that time also accurately recorded the time of this action.
This situation means that it is almost impossible to transport undisclosed prisoners inside the elevator, but it makes it possible for the upper level of the elevator, which is always hidden in darkness.
However, the elevator only went up once.
Before and after Song Jing's death, the murderer needed to make two round trips. The employee's entry was purely accidental, and thirty minutes was obviously not enough time to end the life of someone like Song Jing.
But if this is really the only possibility left, Liang An still needs to find it.
Not just because of the scarcity of possibilities...
“There is more than one path. 』
There really should be more than one path.
This was the answer Liang An gave to Yan Zhiyuan, and it was also the answer he finally came up with by trying to stand on the rooftop and think from the perspective of Jiang Zhuo, who should have understood Song Jing's way of thinking in advance.
If his original purpose was not to obliterate Song Jing, then his actions need to be treated separately.
Plan beforehand and deal with afterward.
Liang An has faced many murder criminals, the most famous of which should be Bai Chen, whose crime so far "doesn't live up to his name." Liang An learned one thing from the various crimes committed by this person who often stopped at the moment and walked away after completing the crime.
Hiding one's identity is one type of perfect crime, but covering up one's identity is another.
Difficulty varies.
A criminal who wants to create an extremely perfect crime that can't be traced by any means will let the truth sink into the ground. Out of caution for his opponent, he will never repeat his inherent methods twice.
*Actually, I originally wanted to use a type similar to "The Mystery of the Strange House" in which the situation can be inferred through the disharmony in the floor plan (I changed the wording a bit because I was afraid that someone who has not read this book would accidentally read it. It’s a spoiler, but actually it’s not a spoiler if it’s told right away in the first dozen pages), but when I think about it, I feel a little self-conscious because no one is watching, but there’s actually nothing to draw, and it’s probably 90% impossible to draw it. The content is all misleading, and it will appear that the police did not think it was useless when they investigated it four years ago (although this is also due to human misunderstanding in this version)... so it is like this now.
In this version of the setting, there is no clue at all from the design drawings alone.
