Other than that, no other clues were found. Zhang Bin and I found Ma Zhiyuan again to see if there was anything to help.

As soon as I squatted down next to Ma Zhiyuan, I heard Sun Jianguo shouting: "Xiao Xu, come here, pack this notebook and take it back." ”

When I ran over to see that Sun Jianguo had closed the yellowed notebook, he handed it to me when he saw me walk in, and then asked, "How is the investigation?" Did you find any clues? ”

I recounted what I had discovered: "An ashtray was found in the duty room, which contained cigarette butts identical to those found under Du Xianchao's bed yesterday, with bite marks on the end of the filter, and a convenience store receipt in a drawer that stated that the purchase was three incense burners. ”

"Gone?"

"No, I've searched all the places, and nothing new has been found, Brother Xiao Ma is checking it over there, and there are no results yet, but I heard him say that the time of death was probably between ten and eleven o'clock last night, because after the body was put down in the morning, it was later hung up, and there were many strain marks and strangulation marks on the neck, and the cause of death is not easy to determine for the time being."

Sun Jianguo pondered for a while, and then said: "You give these things to the three groups, call Zhang Bin and me to go to the rooftop, I want to see the scene of yesterday's fall." ”

"Okay."

Handed over the things to the comrades of the three groups, I called Zhang Bin to follow Sun Jianguo to the rooftop, the situation on the rooftop is still the same as yesterday, except for a reservoir empty, I took Sun Jianguo to the location where the incense burner was found yesterday, he looked down, and said inexplicably: "The location is really quite a coincidence, just above the location of the fall." ”

After reading the location of the incense burner, Sun Jianguo bent down and looked carefully along the railing of the rooftop, and finally stopped his eyes on the cistern.

"When you came up to the rooftop yesterday, did you notice the situation on this side of the reservoir?"

I thought about it, when I came up yesterday, I simply glanced at it, and when I saw the cistern, I skipped it, and I didn't care much, at this time Sun Jianguo asked what it meant? Could it be that the murderer was hiding in the cistern at the time? The cistern is an enclosed concrete pool, more than three meters high, about five meters long and wide, and the murderer cannot penetrate the wall and cannot enter it.

Thinking of this, I said: "I just looked at it, I didn't pay much attention to it, I saw Zhang Lei on the rooftop at that time, so I paid attention to him and didn't care too much about other places." ”

Sun Jianguo shook his head, stared at the reservoir for a few seconds, and said, "It's nothing, it's just suspicion." Binzi, you climb up to see if there are any suspicious traces on the reservoir. ”

I helped down and sent Zhang Bin up in the way of stacking arhats, Zhang Bin climbed on the edge and looked at it for a few seconds, then turned his head and said, "Vice captain, there are no suspicious traces on it." ”

Sun Jianguo frowned, and asked again: "You climb up to look carefully, don't let go of any traces." ”

Zhang Bin had no choice but to climb onto the top of the reservoir, squatted down on it to check it, and after about two minutes, he probed and said: "Deputy captain, there is really no trace, this is cleaner than my face, you see I have been lying on it for a long time, and there is not much ash on my hands." ”

Speaking of this, he himself was suddenly stunned, spread out his hands and slowly approached his eyes, his face gradually showed a puzzled expression, and after two seconds, he turned his head to look at the top of the cistern, and his expression gradually became solemn.

I looked at it below with a confused face, could it be that he found some traces? Just as I was waiting for a hurry, Zhang Bin said solemnly: "Vice captain, I'm afraid there is a problem." ”

Sun Jianguo touched his chin and looked at him and asked, "Is it too clean?" ”

Zhang Bin nodded: "Yes, the top of the reservoir is too clean, there is not much dust, and basically no one will come up to such a high place, but it is so clean, it is not reasonable." ”

I bent down and touched the floor on the rooftop, turned my hand and looked at it, there was a thick layer of dust on my fingers, and then looked up at Zhang Bin's outstretched hands, but found that his hands were basically not ashed.

Sun Jianguo glanced at my palm, and then said: "If something goes wrong, there must be a demon, you come down first, this case is not so simple, let's go to Du Xianchao's house to see the situation." ”

When we got to the third floor, the corridor was empty, and I saw the black dog lying at the end at a glance, and when I saw us approaching, I kept barking. I ignored him and was about to tear open the seal, Sun Jianguo suddenly said: "Wait, let's go and see the dog first, when the police in the jurisdiction visited, I heard that this dog called for most of the night last night, and it is not good to get rid of the murder." ”

Because the dog was chained, no matter how fierce it barked at this time, it could not pose a threat to us, and when we approached, we did not notice anything unusual, and the end of the corridor was empty except for a kennel and a dog basin.

I was looking for this clue when I suddenly heard someone behind me open the door, and when I looked back, I saw that the residents on the third floor were all looking. Sun Jianguo simply asked loudly: "Who owns this dog?" The host came out and we had something to ask. ”

At this time, one of the aunts we asked yesterday stood up and said, "The dog belongs to my family." ”

After Sun Jianguo asked her to come over, he said: "Everyone has come out, I want to understand the situation, don't be afraid, even if there is really a ghost, it will not come out in broad daylight to harm people." ”

"Auntie, I want to ask if the dog ate any special food yesterday?" 、

The aunt pointed to the dog basin and said, "No, I feed it normally as usual, this is a soil dog, it eats everything, and it is not a picky eater." ”

"Could it be that someone else fed it? Otherwise, how could this dog vomit? Now in the weather in July, even if the dog sleeps on the ground, it will not catch a cold, except for eating dirty things, I am afraid that it is impossible to vomit. ”

The aunt shook her head blankly and said, "Someone else's family feeds it?" I don't know, but the neighbors often throw leftover bones at my dog, and I don't know if anyone fed them yesterday. ”

She didn't get an answer, so Sun Jianguo turned his eyes to the residents who were around: "Guys, did you feed this dog yesterday?" ”

Everyone shook their heads, indicating that they had not fed it, and Sun Jianguo asked again: "Then when the dog barked last night, did any of you come out to see what the situation was?" ”

Suddenly there was a chatter in the crowd, and I heard the two people who were closer to me discuss,

"Did the dog bark you out last night to see it?"

"I must have seen it, I screamed so fiercely, how could I not have seen it, it would be past eleven o'clock, I came out to take a look, but the corridor was empty, and there was no one, so I went back to sleep."

"Hey, I'm the same, it was twelve o'clock, I looked around and saw that there was nothing going on and went back, and then I kept screaming, I got up again and looked at it, but I still didn't find anything wrong."

"Who said it wasn't, that is, fortunately it didn't come out last night, otherwise it might have been ghosted, you said this ghost couldn't have become after Du Xianchao's old thing died?"

"It's really possible that that old thing made us uneasy when he was alive, and he wanted to toss us after he died, and he deserved to die."

I listened to a few more conversations, and the content of the conversation was similar, and I ran out to see the dog barking last night, and went back without finding any movement. Because the dog barks for a long time, the time for these people to come out to see it is not the same, but no matter what time it came out, they didn't see anything.

Sun Jianguo asked again: "Has anyone of you come to see near the kennel?" ”

"That's no, who is idle in the middle of the night to watch what kind of dog, such a hot day to walk two steps tired panic."

"I didn't look, it's a big night, there is no light in the corridor, and I am panicked when I come out."

"Yes, two people just died yesterday, and I was in a panic, who would dare to go out at night."

Hearing such news, Sun Jianguo suddenly laughed, waved his hand and said: "Let's go back to the house first, we will give you an explanation of these three murders, rest assured, it will definitely not be a ghost or something to make trouble." ”

When everyone entered the house, Sun Jianguo said to Zhang Bin: "You go to the kennel to get some dog vomit, and then you will go back to the bureau and hand it over to the laboratory department for testing to see what is inside." ”

Sun Jianguo said that he suddenly pressed the dog's head down, and directly pressed the dog to the ground and couldn't move, Zhang Bin took out a evidence bag from his pocket and reached directly into the kennel and grabbed a handful of vomit out.

Seeing that Zhang Bin had already succeeded, Sun Jianguo took two steps back, and suddenly let go of his hand, and the earth dog was a little dizzy when pressed, and he didn't bark for a while.

Zhang Bin put the tape with filth in it, and the three of us walked to the door of Du Xianchao's house again, tore off the seal, opened the door, and a smell of corpses rushed to my face, because I didn't wear a mask, I felt that today's smell was heavier than yesterday.

Sun Jianguo still looked in the living room for a while, pointed to the side of the sofa and the edge of the table and said to Zhang Bin: "Check these two places carefully, according to people's habits, there is a great possibility of leaving fingerprints here." ”

"Cigarette butts do not prove that Zhang Lei is the murderer of these two murders, maybe it may be that the murderer picked up the cigarette butts that Zhang Lei smoked and deliberately threw them under the bed to confuse our sight and frame Zhang Lei. In the case of the incense burner, the murderer may have asked Zhang Lei to buy it, so even if the DNA detected on the cigarette butt is consistent with Zhang Lei, and the purchaser of the incense burner at the convenience store is Zhang Lei, it does not mean that the murderer is him. ”

Hearing Sun Jianguo say this, I was faintly glad again, but thinking that Zhang Lei was framed to death, and there were two more black pots for no reason, and I felt sympathy for him, the two contradictory psychology made me very irritable for a while.

"What's wrong? The braincase is short-circuited again? What do you think about all day, kid? No matter what happens, just follow your superiors, tell you, even if this case is not done by Zhang Lei, it may have a certain relationship with him, you haven't read what is written in that book, let me tell you. ”

It was a diary written by Zhang Lei during the Wenge period, which recorded in detail how his parents died at the hands of the rebel Du Xianchao, how his wife was ruined by Guo Da, and how his children were sold. A person can keep such a diary for thirty years without losing it, which shows that he has never forgotten the hatred of the year, and it is still uncertain whether Zhang Lei helped the murderer to commit the crime, if so, there is one more accomplice in the case. ”

Even if he had already guessed that Zhang Lei's family died in the movement that year, now that he really heard such a result, he still felt a little uncomfortable. Seeing Sun Jianguo walk into the bedroom, I had no choice but to suppress the feelings in my heart and follow.

Although all the body parts were brought back to the city bureau yesterday, the bedroom was not cleaned, and a large amount of filth was still left on the bed, which was crawling with maggots at this time, and Bai Huahua's body was rolling, which made people feel disgusting.

Sun Jianguo squatted at the end of the bed, staring at the scene on the bed a little distracted, and suddenly said after a while: "No, if the murderer has been wearing gloves since he entered the house, he will not leave a trace of fingerprints, Xiao Xu, let Bin Zi not do the test." ”

I thought for a while and said: "Vice captain, I think it is still necessary to test, if the murderer has eaten here, he will definitely not wear gloves, otherwise it will easily arouse Du Xianchao's suspicion." ”

"Yes, but if he really finds some suitable excuse, I'm afraid he will really wear gloves all the time, and if that's the case, it will be a little troublesome."

"Vice Captain, why don't we check the account? Now it is basically the insiders of this building who committed the crime, we will check the household registration information of all the residents in the building, focusing on the people whose household registration is Lousun Village and nearby villages, if it is really the grudge accumulated by the movement 30 years ago, the murderer must have lived near Lousun Village. In this way, the scope of suspects can be greatly narrowed. ”