Fang Lei plans to start the investigation from the top floor of Building 38 to the next household.

Since the deceased was hit while passing under this building, there is a high probability that the murderer (who can no longer be called the perpetrator) lived in this building, and as the previous property manager said, it is likely to be 10 floors up.

Just now, he has notified the personnel of the forensic and forensic departments to arrive at the scene, and they are checking the clues at the scene (including the "murder weapon" big yellow dog), and he began to investigate the operation, checking from top to bottom to see which one lacks morality (at present, he still temporarily believes that the cause of this accident is an accidental high-altitude projectile) is so immoral, causing the death of the person and dare not come out to admit it.

The first place that needs to be checked is the rooftop.

However, when he and the property manager stood in front of the door to enter the rooftop, they found a large bullet lock hanging on it.

"This rooftop has been locked, and it hasn't been opened for almost half a year." Manager Wang explained.

Fang Lei stepped forward to check the keyhole. Sure enough, the wear and tear inside showed that the lock had indeed not been opened for a long time.

"Is it like this on all rooftops?"

"Not quite." Manager Wang was hesitant.

Fang Lei knows that many properties are afraid of trouble, so they will lock the door of the rooftop to prevent the owner from going up to dry the quilt or play and occupy the public space.

"But don't you have to go up and do the hygiene?"

"Gee, we're not manpowered. Because no one goes up, there will be no dirty things. It's only done once every few months. ”

Fang Lei thought about it and decided to go up and have a look.

"Open it."

"Officer, there's no need for this, no one has ever been up to see it."

"I'll open it when I tell you to."

The property manager had to untie the keychain from his belt, find the key, and open the door.

"Is this the key yours have? How many are there? ”

"There are only two handfuls, one is placed on the property, and the other is carried with me at work, and it is locked in the safe after work."

Fang Lei said "um" and said no more.

The lock was opened, removed, and the door was pushed open. A strong light shot in, stabbing Fang Lei from opening his eyes for a while. After a moment of habitation, he lowered the brim of his hat and stepped out.

This rooftop is about three or four hundred square meters, boxy, and there are cement fences one meter and two meters high on all sides.

The surrounding buildings are high and low, and they are scattered. The floor of the roof is paved with dark asphalt, which is a little soft and hot to step on because of the high temperature. There are drains at the four corners.

In addition, there is nothing but a one-meter-square exhaust vent and high-altitude cables.

Fang Lei walked to the fence on the side of the road facing the north, leaned over and looked down - the scene of the accident had gradually calmed down, there were many fewer onlookers, and some police officers had finished their simple scene investigation work, were packing up their tools, and were preparing to go home.

"Officer, let's go down, it's too sunny here." Manager Wang put his hand on the pergola and said with a bitter face.

Fang Lei nodded. There was no place to hide the murderer, and the distance between the surrounding buildings was too great to escape from here, and the door was locked, so it was basically ruled out that the dog was thrown from the rooftop.

He turned, ready to walk towards the gate. He was halfway through when suddenly a bright light crossed his eyes, like the reflection of a mirror. He quickly looked around, but saw nothing.

"Let's go."

They walked into the door of the rooftop, and immediately, Manager Wang locked it again.

This building has a total of 31 floors, one staircase and two households, basically all of which are about 140 square meters. If you choose this type of house as a residence, it is usually a family of three or more.

As a new first-tier city with developed economy, S City is different from super metropolises like Beijing, Shanghai, Guangzhou and Shenzhen, where a large number of young people come to work hard.

So, even on Mondays, it's not surprising that there are people in the homes of 3101 and 3102.

3101 opened the door to a plainly dressed woman.

She is in her forties, very strong, speaks Mandarin with an AH accent, and is a little nervous when she hears that the other party is a police officer, even if it is an old police officer.

After Fang Lei entered the house, he turned around, except for a cute baby in the cradle, there were no other suspicious people.

The woman explained that she was a home-based aunt, and the child's parents had to go to work during the day, and she was responsible for the family's meals in addition to watching the children.

"I don't dare to be lazy at all, being watched all the time."

Hearing her say this, Fang Lei noticed that almost all cameras were installed in the living room and the roof of each room, that is to say, Auntie's every move was under remote monitoring, including him should have been seen when he entered the house at this time.

It's understandable to think about it.

Nowadays, there is an endless stream of negative news about nannies abusing children in society, and installing a home camera is also for a sense of security.

In order not to worry the other party, Fang Lei took the initiative to say hello to the camera, and then took out his police officer card and shook it, saying that he would just ask a few words and leave.

"Have you been at home today?"

"In. Because I have children, I can't leave, and at most I will only go downstairs at three or four o'clock in the afternoon to get some food. It won't take more than ten minutes before and after. ”

"Pick up food?"

"That's right. Now it's impossible for me to go to the vegetable market to buy vegetables, and the community has food delivered to the storage freezer. My hostess will buy the food online a day in advance and deliver it regularly, and she just needs to send me the pickup code. It's convenient for everyone. Oh, by the way, I'm going to pick up the food right now. ”

"But, what will happen to the children at home when you leave?"

"So, I have to be back in ten minutes. That, officer, you happen to be here, I'll go downstairs and get some food, and I'll be back soon. Can you help me take a look at the child? ”

"I ......"

"Thank you."

With that, the nanny immediately went out. Fang Lei and Manager Wang looked at each other.

"Officer Fang, this ......"

"Shh

Fang Lei motioned to Manager Wang not to speak, but walked to the cradle.

The baby is sleeping peacefully inside.

He looked at the child's face and suddenly remembered that his two daughters were so cute and beautiful when they were so old. At that time, he swore that he would raise them well and that nothing would happen to him.

What I didn't expect was that now that they are older and old, the warm scene of father and daughter that they once envisioned is getting farther and farther away.

At this moment, the little baby woke up, opened his eyes, and saw that it was an old man, and he began to cry.

Fang Lei was in a hurry for a while, trying his best to make her happy, but the more he teased her, the more she cried.

Fang Lei was in a hurry, picked up the little baby, dragged his ass with one hand, patted its back with the other, and comforted it with his mouth.

But it was completely useless.

The child was still crying.

He glanced at Manager Wang and thought to himself that she was a woman and should be good at this, but the latter pretended not to see it and turned his face to the side.

Now, he really didn't know what to do.

Fortunately, the aunt had already returned, carrying a large bag of vegetables in her hand. She said "I'm sorry" vigorously, put down the food, and then quickly came over and took the baby from his hand and began to coax it.

Fang Lei, who had unloaded the burden, found himself sweating in a hurry, thinking that this was too difficult.

"Let me ask you, did you hear anything unusual in your house today?" When the child finally stopped crying, Fang Lei continued to inquire about the case.

Auntie shook her head.

"Do you know who has a dog in this building?"

"Yes, there is, but I don't know exactly which one. People in the building don't interact with each other much, I just once saw someone in the elevator with a big dog, I happened to hold the baby, almost scared to death. ”

"How big?"

"It's so big."

When the aunt compared, Fang Lei didn't think it was too big.

"Is it a yellow dog?"

"No, it's white, and it's covered in hair. The host is a woman. ”

"Do you see any other dogs? Ever seen a yellow dog? ”

Auntie shook her head again.

"What are you doing? Why do you cry like this? ”

A strange woman's voice suddenly came from the speaker, startling everyone.

"It's okay, I just went downstairs to get food."

"Are there police officers in the house? What's wrong? ”

Auntie explained briefly.

"Okay, I'm almost off work, I'll cook early today, I still have something to do in the evening."

After that, the speaker never made a sound again. Fang Lei noticed that this aunt looked embarrassed. He didn't ask anything more and just withdrew.