Xia Wei'an closed one eye and looked into the cave. He found that there was a bustling street. At this time, there were pedestrians coming and going.

She looked at the emperor star in surprise and said, "I didn't expect that this dead end would come in from a very remote place. It's just a wall away from the downtown!"

"So I wonder if someone happened to spy out of this hole when it happened that day."

The street outside is monitored. As long as it is found out that someone happened to be in this position outside the wall during the time of the accident, finding out this person may be helpful to the whole case.

"But who would be so bored to stay here and observe a dead end through such a small hole? So baby, I think it's better to go to the opposite upstairs for clues. "

Xia Wei'an turned and pointed to the building opposite the alley. Emperor Xingchen nodded and agreed. They walked towards the high building.

Under this building is a courtyard, surrounded by high walls. The iron door is locked. They knock for a long time, but no one comes to open the door. At this time, an old man comes out of the room with only one floor on one side. Xia Weian asks.

"Grandma, isn't this family at home today?"

"The whole family immigrated a few years ago, and the house has not been rented. It has been vacant for several years. Who are you and what can I do for you?"

"It's OK. I just want to rent the house here."

"Go back. They don't rent this house." The old man waved and did not talk to them much. He turned and went into the house.

Xia Wei'an looked at the emperor star dejectedly. The emperor star held her shoulder and said, "don't be discouraged. Can we go to check if someone happened to stay outside that cave?"

Now only this method is left, but Xia Weian thinks that this method is still not feasible.

Emperor Xingchen calls up the video of that period on the computer, only to find that there is a beggar begging in that position all the time, and at that time, he sleeps against the wall with his face facing the wall!

"Baby, you say you are too unlucky. I found no one in the most likely place to have an eyewitness, but you found someone in the least likely place to have an eyewitness!"

"Tongue twister!"

Emperor Xing Chen pinched her nose, and they got up to look for the beggar.

According to the shop owner next to the wall, because there is no facade, it has been occupied for a long time by a beggar in sloppy clothes. He begged here every day, ate, drank and slept here. But I don't know why he didn't come today.

Didn't you come? Was it because you saw the whole incident and were afraid of causing trouble, so you left to find a new place?

It's easy for emperor Xingchen to find someone in the capital. When they learned that the beggar had moved to the foot of the overpass, they rushed there without stopping.

There is also a river under the overpass where he lives. Although it is wet, it is convenient to wash and gargle, so there are many people, most of whom are homeless tramps.

However, most of the tramps live in the cave and beg for a living because they are so lazy that they can't even clean up where they live. Standing outside, they can smell a stench.

Xia Wei'an looked in and saw that these beggars were wearing the same clothes. He couldn't tell who was who, so he just wanted to go in and look for them. He just walked two steps and was held by Emperor Xingchen.

"You wait here, I'll find it."