When Song Che and Xu Xiao arrived at the post station, they had been tightly controlled inside and out.

A curfew is in place in the city of Suzhou.

Cao Tian was on a mission in Suzhou, and he was the only one living in the post station, counting the personal guards he brought from Beijing, there were a total of 32 people to protect his safety.

Xu Xiao took advantage of his position to bring Song Che into the post station.

Cao Tian lives in the elegant house on the second floor, which is roughly two bedrooms and one living room, the entrance is the living room, the left side is the study, and the right side is the bedroom, all separated by bead curtains.

Cao Tian stared, slumped in his chair, a dagger stuck in his chest, and there were unfinished books on his desk.

The blood stained the placket red, but it did not sputter, which shows that the killer is skillful and clean, and he is killed with a single knife.

"How did you get him?" He Qiu glanced at Song Che and asked Xu Xiao, there was a big man with a saber beside him, it should be Yang Xin, Cao Tian's personal guard.

Xu Xiao said: "Lord Cao's murder is related to the New Year's coin business, so I went to the Shen family to invite Aunt Song." ”

Jingguan died in Suzhou, Song Che lost his business, and his parents could not escape the blame. He Qiu knew very well that now they were in the same boat.

"So, Aunt Song, do you have any advice?" He Qiu asked.

Song Che said first: "At the scene of the murder, there should not be too many people, bother you to escort out, only Lord He, Xu Dutou and me." ”

Yang Xin said: "Failing to take good care of Lord Cao is my dereliction of duty, and I should stay to assist in the investigation." ”

Song Che said: "When you need guards, I will ask you for questions." ”

Yang Xin frowned, looked at Song Che, his eyes were quite cold, "With all due respect, you are just a businessman, and you are doing business with adults, you should avoid this suspicion more than anyone else." ”

Song Che said in a deep voice: "Lord Cao's death has done me a lot of harm to my Shen family, why should I avoid suspicion?" ”

Yang Xinhe said: "Then you told us to leave, meaning that we should avoid suspicion?" ”

Truly.

With such a tight guard, Cao Tian was killed by a knife, not to mention the ineffective guards, it is not excluded that it was his own people.

Song Che didn't bother to say more, and glanced at He Qiu.

He Qiu immediately understood, "Yang Huwei, this case is serious, and the Suzhou Government will have full authority to handle it, if you really need your assistance, just wait for the order." ”

The words were already very clear, Yang Xin could only put down his face, glanced at Song Che coldly, and withdrew from the guest room with the guard.

Xu Xiao covered the doors and windows.

"Lord He, do you know the basic situation?" Song Che walked to the study and asked while examining the corpse.

"I've just arrived," He Qiu said, "If you are a second knife, don't mess with the corpse, I have already sent someone to ask for it." ”

Song Che said: "The killer is a professional, clean and neat, and generally does not leave any clues, so please be useless." ”

He Qiu asked, "Then how are you tinkering?" Make yourself look very professional. ”

"Judge the time of death."

I haven't been a forensic doctor, haven't you watched a criminal investigation drama?

"The corpse's face and limbs are stiff, the blood has scabbed, the body is not completely cold, the weather is so hot, it has not yet grown corpse spots, and the time of death is about an hour;"

Song Che pointed to the fingerprint on the corpse's neck again, as well as the dagger on his chest, and moved behind the corpse, "Judging from the direction of the fingerprint, the murderer is from behind, first choked Cao Tian's throat, and then stabbed into the heart, just like this——"

He reproduced a murderous action, "The murderer must be highly skilled, fast and accurate, otherwise the blood would never flow so slowly." ”

"Why didn't the murderer just wipe his neck?" Xu Xiao said curiously.

Song Che said: "This is the killer's cleverness, there is a large artery in the neck, and the throat will definitely spurt blood, if it is splashed on the body, it will leave clues, giving the case solver a chance." ”

"There are guards on all sides of the inn, how did he come in and kill people, and how did he get out?" Xu Xiao asked.

Song Che looked at the entire house, there were two windows in total, one for the bedroom and one for the study, facing the backyard and the street respectively.

More than an hour ago, there were pedestrians on the street, and he must not have entered through his bedroom, and the backyard was more likely, but there were guard handles in the backyard, and a killer so cautious and clever would probably not take this risk.

"Is it possible that he has been hiding in the house all along?" He Qiu took a sip.

These words woke up Song Che, the elegant house is simple and chic, and the place where people can hide is under the bed except for the wardrobe, and the wardrobe and the bed are in the bedroom, and the murderer will never go around and kill people.

So......

Song Che slowly raised his head.

Facing the corpse was a large beam, about four feet above the ground, and no one would have noticed that someone was hiding unless they had deliberately looked up.

"The girder has accumulated dust for a long time, if the murderer really squats here, he should leave footprints," Song Che asked Xu Xiao again: "Can you go up this distance?" ”

Xu Xiao said: "It's easy. ”

He Qiu advised: "Remember not to cover the evidence. ”

Xu Xiao nodded, stepped on the windowsill to borrow strength, kicked hard, stepped on the wall twice, changed his body three times, and easily climbed the beam.

Song Che crossed his waist and sighed again and again. Every time a person uses kung fu, he has to sigh that Chinese martial arts are broad and profound.

"How's it going? There may be footprints. He Qiu was eager.

Xu Xiao shook his head, "Nothing." ”

He Qiu sighed secretly: "It seems that we are all wrong. ”

"That's not necessarily," Song Che asked Xu Xiao on the beam again: "Isn't there even ash?" ”

Xu Xiao jumped on the beam, wiped it from head to circumference, and shook his head to confirm: "It's really not, the whole beam is clean." ”

The beams of the house have not been cleaned for a long time, how can there be no ash?

Song Che looked at He Qiu with a smile: "Sometimes the clues are not left behind, and some people are often mistaken because they are smart." ”

He Qiu was puzzled, "The post station has not received other guests since Lord Cao's visit, and there are guards who are strictly guarded, how did the murderer get into the post station?" ”

Song Che gestured three fingers, "There are only three types of people who are qualified to enter the house, the first is the master, the second is the servant, and the third is the guard. ”

He Qiu frowned even more and lowered his voice, "You mean, the murderer is likely to be hiding in this post station?" ”

"There is this possibility," Song Che pursed his lips, thought for a moment, and said to Xu Xiao: "In this way, Xu Dutou, you go and gather everyone at the post station to wait in the courtyard." Master He and I set up a dark room on the first floor, and whoever we called would be brought in, and we staggered the inquiry. ”

"No problem."

……

The advantage of staggered interrogations is that flaws can be found in the different confessions.

Before the interrogation, Song Che and He Qiu combed Cao Tian's itinerary today.

It was very hot during the day, and Cao Tian never left the house.

When the sun was setting, because he was going to escort the New Year's coin back to Beijing tomorrow, Cao Tian wanted to bring some Jiangnan specialties to his family, so he went out of the post station with the guards Yang Xin and Li Cheng.

After selling the special products, I went to Babaolou for dinner, and returned to the post station about one watch, and then closed the door.

Before the second watch, Huang San, a fellow at the post station, went into the house to deliver washing water, and found that Cao Tian was assassinated, and then Yang Xin went to Suzhou Mansion to report the case, which happened to be the second watch.

The post station defense is divided into three layers, the first layer is the periphery, twenty-four people are divided into three groups, each group of eight people, three hours to change, take turns to patrol and watch; The second layer is the inner perimeter, which is divided into the front yard and the back yard, and is guarded by eight guards brought from the capital.

The guards on the periphery are all recruited locally, their household registrations are all in Suzhou, the foundation is very clean, and there is not much motive for committing crimes, so the key objects of investigation are the eight personal guards brought by Cao Tian from the capital.

"Lord He, what I asked later, and what they answered, you have to help me register it so that it can be made into a confession book." Song Che instructed.

"I think you're more like the prefect of Suzhou." He Qiu grinded the ink very reluctantly.

"We are now grasshoppers on a rope, I am for business, you are for business, we should work together." Song Che said, summoning:

"Bring in the post man Huang San first."

A moment later.

Xu Xiao took Huang San into the house.

Huang Sanzhan fought a great battle.

"Huang San, let me ask you, since the transfer envoy stays at the post station, what kind of fresh faces are wandering?" Song Che asked first.

Huang San shook his head and said: "No, Lord Cao's mission is outstanding, since the day he moved in, the post station refused to be accepted, and even the post man was temporarily repatriated." ”

"Did you clean the house before you moved in?"

"Naturally, it was cleaned and spotless."

"What about the beams, can you clean it?" Song Che asked again.

Huang San sighed and quickly knelt down, "It's the villain's negligence for a while, he forgot to clean the beams of the house, I implore the adults to atone for their sins!" ”

"Just ask, you don't have to panic," Song Che paused, and then asked, "How many times have you entered the Yashe today?"

Huang San replied: "Twice, once in the morning to bring face wash water to Lord Cao, and once in the afternoon, after Lord Huang went out, I folded the quilt and cleaned the room for him." ”

"The windows are closed?"

"It's covered, Lord Cao's room is shining at sunset, so in order not to get into the heat, I closed all the windows when I left."

"Is it locked?"

"Naturally, it's trivial, there are often strange winds blowing in the summer, hitting the east rain, there are many letterheads and bookbooks in Lord Cao's study, the villain doesn't dare to be sloppy, and after the trivial, he pulled it a few times, and he really couldn't blow it away before leaving."

"You're careful."

"Although the villain is just a guy who watches the store, no matter how much he eats the emperor's grain, he is afraid that he will not be cautious."

"Go out, remember, don't tell anyone what we've asked you, no one is allowed to say."

"The villain must be tight-lipped as a bottle."

Huang San exited the dark room.

He Qiu put down the pen by the trend, he deserved to be the champion, and he could write so beautifully in quick notes.

"You've asked him so much, but what do you see?" He Qiu asked.

Song Che said: "Since the beams of the house have not been cleaned, it means that the murderer did it to cover up his footprints." Huang San shuttled the window shut before leaving, indicating that the murderer had not entered the house at this time. ”

He Qiu thought for a while, and said: "There are guard handles in the front yard and the back yard, and it is impossible to enter the house from the main entrance, and the bedroom window on the right side faces the street, and it is even more impossible to enter from there." Then the murderer must go through the left window to enter the house. ”

Song Che added: "And someone has to open the window from the inside to get in." ”

He Qiu said in a deep voice: "Then, whoever has entered Yashe during this time period is the murderer. ”

"Take the front yard to guard Zhou Tai and Han Dong!"