Seeing that it was still early, Mu Siqing fought and said, "Xu Dong, I want to use your sensitive sense of smell to go and see the old cleaner again."

This matter, for Xu Dong, can't wait to know, Mu Siqing said that he wanted to go again, of course Xu Dong would not refuse, but with the help of Xu Dong's sensitive sense of smell, it was just in Mu Siqing's memory, Xu Dong helped him solve a few cases with his "nose", so when Mu Siqing thought of solving the case, he naturally thought of Xu Dong's "nose".

In fact, in just a short period of time, Xu Dong already has more powerful abilities than a "sensitive nose".

However, Xu Dong won't say this thing, Qiao Yanxue also told Mu Siqing, as for the fat man, he naturally thought that Xu Dong was just lucky.

went to see the cleaner again, Mu Siqing just asked Xu Dong to accompany him, as for Qiao Yanxue and the fat man, Mu Siqing didn't take them with him, it was useless to go, not to mention that Qiao Yanxue was sad now, if she went, it would inevitably be biased in her subjective consciousness, which would bring some unnecessary misjudgments to things in the future.

Because Mu Siqing had been there once, it was basically not difficult to take Xu Dong over this time, and soon, he arrived at the old cleaner's residence.

The old cleaner's residence was on the fifth floor of the basement of a building, and the people who lived in such a place would certainly not be rich people.

The door was locked, but it was difficult for Xu Dong and Mu Siqing.

Xu Dong wanted to open the lock directly, but Mu Siqing stopped Xu Dong, took out a twisted steel wire, and opened the door in three clicks.

Xu Dong smiled bitterly, he hadn't seen it before, Mu Siqing would still do this.

Mu Siqing pushed open the door, turned her head and saw Xu Dong's strange face, and couldn't help but sneer: "Isn't it strange, I just learned it from Qiao Yanxue in the past two days." ”

I see, Xu Dong shook his head and said with a smile: "I didn't expect my wife to be not only a policeman and inspector, but also a person who knows how to open the door and pick the lock, hehe......"

There are no other people here, and when Xu Dong speaks, he doesn't have so many scruples.

Mu Siqing's face turned red, and she said angrily: "Who is your wife, I haven't agreed yet, look at your beauty." ”

Xu Dong smiled and said, "Why are you so restrained, there is no one else here, I haven't even spoken to you yet?" ”

"Go, go, go...... Don't even look at what time it is, if you want to do it, you have to finish your business! Mu Siqing waved her hand, gently pushed away Xu Dong, whose mouth was on her face, and pushed the door open lightly.

Although Xu Dong was itchy in his heart, Mu Siqing had already entered the house at this time, and Xu Dong had to press the deer touch in his heart and follow into the room.

Mu Siqing turned around and said in a low voice, "Bring the door, don't let other people in." ”

Xu Dong naturally saved, although Mu Siqing and himself came to investigate the situation of the old cleaner, but in this place, in this way, it is not justifiable, if you are not careful, you may be arrested as a thief.

After closing the door, Mu Siqing groped to turn on the electric light in the house.

With a soft sound of the "horn", the electric light was turned on, and Xu Dong saw clearly that the old cleaner's home was actually not very shabby, and compared with other people living in the basement, the old cleaner was still in a middle-to-upper family.

While carefully looking at every place he felt suspicious, Mu Siqing whispered to Xu Dong: "This old cleaner's name is Cormac, he is a widower, and he is said to have a son, but his son never comes back to see him......

Xu Dong took a look inside the room and found that the cleaner's house named Cormac was very narrow, and the whole space was probably less than twenty square meters, a bed and a set of modular sofas occupied one-third of the space, and on the right side of the door, there was a set of wardrobes and a TV cabinet with a TV.

In general, the layout of the whole house is very neat, if Mu Siqing doesn't say that Cormac is a widower, Xu Dong is very suspicious that there is a woman in this room who is helping Cormac tidy up the room.

Mu Siqing smiled faintly and said, "Don't forget, Cormac is a cleaner, like you, he always makes a mess of the house, I believe his neat habits will make it easy for you to find some clues." ”

Xu Dong looked at the whole room, and found nothing suspicious, and looked at it with alienated eyes, the sofa and the bed, these furniture, are basically the places where Cormac has been in contact for the longest time, and there is a lot of aura on Cormac's body.

On the sofa, the breath left by Cormac was very plain and pale, which was very close to the breath he saw on the day he picked up Cormac's note, indicating that this Cormac and the cleaner he saw were the same person.

Mu Siqing looked at the drawer on the TV cabinet and said: "Cormac died in bed because of a sudden myocardial infarction, and before he died, he called the emergency number, but when those people rushed over, Cormac was already breathing......"

Xu Dong took a look at the bed, the sheets and quilts were obviously tidied up, because the breath left by Cormac on it was very weak, and it was almost two-thirds weaker than the breath left on the sofa.

Xu Dong couldn't help frowning and said, "The sheets on this bed have been changed, do you know who changed them?" ”

"The sheets have been replaced, no!" Mu Siqing turned around and said with some surprise: "Cormac doesn't have any relatives here, and even the aftermath is handled by volunteers, how can someone help change the bed sheets...... Wait, Xu Dong, do you mean that this is not the first scene? ”

"Now I'm not sure, I'm ......not sure," Xu Dong frowned, thought for a while, and then said: "I found that the smell on the bed is not very close to the sofa, I still have to smell it carefully......"

Mu Siqing turned around suddenly and said: "Xu Dong, if you can be sure that this sheet has been replaced, then it means a problem, Cormac was murdered, and only then did he disguise himself as Cormac had a myocardial infarction and died on the bed, quickly, quickly make sure." ”

For this point, Xu Dong had already thought that if Cormac really died on the bed because of a sudden illness, and the sheets had not been changed, I believe that the breath on it should be stronger than that on the sofa.

However, the fact is the opposite, after Cormac was murdered, the body was moved to the bed, and the murderer also made a special emergency call, so that when the emergency personnel arrived, they would tell others that Cormac was not murdered, but had a sudden illness and died normally.

Xu Dong nodded, stepped forward to lift the quilt, pretended to take it under his nose and sniffed it carefully, this quilt was actually Xu Dong had seen it very thoroughly, and there was no other breath on it except for the faint breath left by Cormac.

What puzzled Xu Dong was that the murderer of Cormac wanted to change Cormac's sheets and quilts? And it should have been replaced after Kemak was taken away by the first responders, what was that murderer for?

"You mean......" Mu Siqing pondered for a moment before saying: "You mean, not only is this not the first scene of Cormac's murder, but the murderer also purposefully changed Cormac's bed sheets, and then put on new ones!" ”

Xu Dong nodded again: "This quilt has just been cleaned, or after cleaning, it is kept for backup, you smell it, the smell of detergent on it is still very strong, and you can hardly smell the smell left by Cormac on it." ”

Mu Siqing moved her nose slightly, the fresh smell of detergent, Mu Siqing smelled it, as for the smell of Cormac, Mu Siqing naturally couldn't tell it, but Xu Dong said that there was no smell left by Cormac.

Mu Siqing thought for a while and said, "If that's the case, the murderer will definitely leave a smell somewhere on top of this quilt, Xu Dong, smell it carefully!" See if you can tell. ”

Xu Dong hummed, looked at it carefully again, and sure enough, on a corner of the quilt, Xu Dong found an extremely weak aura, which was so weak that if it wasn't for Mu Siqing's reminder, Xu Dong might have ignored the past.

Moreover, the smell was ochre-yellow, very light, and completely different from the pale smell that Cormac had left on the sofa, and there was no doubt that it should have been left by the murderer, or the person who had changed Cormac's sheets.

However, Xu Dong couldn't say this directly to Mu Siqing, but changed his tone and said: "I smell that this place does have a bit of a peculiar smell, it is sure that it is not the smell of Cormac himself, I suspect that this smell was left by the murderer or the person who stole the sheets." ”

"Can you describe the smell specifically?" Mu Siqing asked.

If you can remember this smell, and then look for the murderer according to the smell, the scope of what needs to be found will be greatly narrowed, this is the experience that Xu Dong gave to Mu Siqing to solve the case with Xu Dong before.

It's just that this is New York, not China, and Mu Siqing's current identity is only a tourist, not a policeman, a detective, Mu Siqing said this, basically just out of habit, and it was just a matter of habit.

Xu Dong thought that he was clearly aware of this, and couldn't help but shake his head, and said: "The main thing for us now is to find out why this murderer killed a cleaner and why he changed his bed sheets. ”

Mu Siqing was stunned, then recalled his identity, couldn't help sighing, and asked, "In your opinion, what is the reason for this." ”

Xu Dong smiled, turned around, twisted Mu Siqing's face lightly, and then said: "Wife, Lidu has worked in criminal investigation for so many years, you can't think of this reason?" ”

"Can you be serious, we're getting down to business right now...... Don't sell it to me, just say it, I have a reward......" Mu Siqing touched the place that was pinched by Xu Dong, and said with a red face.