After Ouyang Lan finished asking the prepared questions, he didn't linger long, and returned to the bureau after saying goodbye to Zhang Mintao. This private visit to Zhang Mintao made the other party take off more guard, and even took the initiative to provide some recalled information, Ouyang Lan was very happy about it.

The next task was to find the cemetery that Li Tian went to at that time, the whole river was so big, it was too difficult to find a cemetery. And Li Tian didn't mention where the grave was, looking for it aimlessly, it would only be a waste of time and energy.

Ouyang Lan checked all the places in Jiangxia City that had cemeteries and cemeteries on the map, and there were more than 50 large and small, not including those lonely graves in the wilderness. Ouyang Lan, who was originally full of hope and confidence in his heart, unconsciously sighed again.

Just when she was at a loss, Yang Ziming's voice came from the door: "It's not very difficult to find that cemetery. ”

Ouyang Lan looked at the door in surprise, Yang Ziming was walking in with a smile, and Ouyang Lan didn't notice him knocking on the door.

When he visited Zhang Mintao privately this time, he didn't ask Yang Ziming for instructions in advance, but how did he know about this? Ouyang Lan thought of this, the surprise on his face turned into embarrassment, as if he had secretly done something and was discovered, his heart was pounding, and he thought that it was probably indispensable to criticize and educate.

What made her strange was that Yang Ziming didn't mean to scold her, and he didn't speak, just looked at her with a smile.

Ouyang Lan opened his mouth first: "Captain Yang, you ...... You...... Why don't you knock?"

Yang Ziming replied: "I knocked on the door, you were focusing on the case, I didn't hear it." ”

"Uh, is that so? hehe. Ouyang Lan scratched her head embarrassedly, and then said again: "By the way, I'...... I went to visit Li Tian's wife in private, and I didn't ask you for instructions, you ...... Do you mind?"

Yang Ziming laughed out loud after hearing this, patted Ouyang Lan's head lightly and said, "Do I mind if it's useful?" Haha, this case was originally hosted by you, and I just assisted you, so it's up to you to decide what you want to do, and you don't need to ask me for instructions, you know?"

Before, he had always helped Yang Ziming and assisted him, but this time, he became the organizer and asked Captain Yang, who was higher than himself, to help him, Ouyang Lan had not yet adapted to such a change, and he was a little flattered in addition to being surprised.

Having said that, out of respect, Ouyang Lan still explained the current progress of his case to Yang Ziming, and the topic came to the matter of finding the wasteland and lonely grave where Li Tian had been.

"By the way, Captain Yang, you just said that it is not difficult to find that graveyard, how do you say that?" asked Ouyang Lan.

Yang Ziming explained: "According to Li Tian's description, the wilderness, several lonely graves that are being relocated, obviously this place is not a cemetery, so those cemeteries on the map can be excluded. ”

Ouyang Lan nodded in agreement and excluded those cemeteries.

Yang Ziming continued: "Wilderness land and lonely graves, this kind of place is generally the suburbs or even rural areas, and the urban areas of the river can be directly excluded. ”

"Good. Ouyang Lan excluded a number of cemeteries in the urban area.

However, after the exclusion, there are still nearly 20 places, and not including some places that are not shown on the map, and the task of finding is still difficult.

Ouyang Lan felt a little embarrassed, but Yang Ziming was not in a hurry, he already had a way to deal with this difficulty.

"This requires you to visit Li Tian's wife again and ask her to recall how long Li Tian went out on the day he went to the wilderness graveyard. ”

"How much time have you been out?" Does this answer have any connection to the place we're looking for now?"

Yang Ziming pointed to the map of the cemetery displayed on the computer screen and explained: "We can estimate the range of his outings based on the length of time he has been out, as long as we look within this range, the probability will be much greater." ”

Ouyang Lan suddenly realized that without rich experience in criminal investigation, it was really hard to think that Yang Ziming would always be his teacher in this regard.

Ouyang Lan, who was always passionate about his work, immediately got up and said, "Then I'll go to visit Li Tian's wife again now." ”

Seeing Ouyang Lan in such a state, Yang Ziming was also very happy, and offered to drive as a driver, and he had to actively cooperate and assist Ouyang Lan in this case.

The two drove to Tianyun Road, and just arrived at the door of Zhang Mintao's house, they saw Zhang Mintao buying vegetables from outside and going home, and when they entered the door, Ouyang Lan called out to her: "Sister Zhang!"

Zhang Mintao turned his head to see that it was a female police officer who had just come to the house before, and asked with a smile: "Officer Ouyang, why did you come to my house again?"

Ouyang Lan trotted forward and replied, "Sister Zhang, there is still something I need to ask you when I am looking for you, I forgot to ask before, is it convenient?"

Seeing Zhang Mintao looking at Yang Ziming, Ouyang Lan immediately introduced: "By the way, this is our captain, Yang Ziming." ”

Zhang Mintao nodded and said, "I know Officer Yang. ”

After the flying knife murder two years ago, Yang Ziming visited Zhang Mintao many times, so the two are very familiar with each other.

Yang Ziming also stepped forward and nodded at Zhang Mintao and greeted, "Sister Zhang, hello!"

"Well, let's go back to the house and talk!" Zhang Mintao finished speaking, and took the two of them into the house.

After coming to the house and sitting down, everyone went straight to the point, and Ouyang Lan asked, "Sister Zhang, you told me before that your husband went to the cemetery in the middle of the night, right?"

"Yes. ”

"Then do you remember, how long did your husband go out that night?" Ouyang Lan asked the prepared question.

Zhang Mintao frowned, because it had been too long, and it was a little difficult to remember such a small thing.

"It's been so long that I don't remember it very well. ”

Ouyang Lan and Yang Ziming glanced at each other, slightly disappointed, but she didn't give up and continued: "Sister Zhang, think about it again, do you have any special reminders. ”

Zhang Mintao closed his eyes and quietly tried to recall, Ouyang Lan and Yang Ziming waited patiently.

A few minutes later, Zhang Mintao opened his eyes and said: "I have a habit of waking up in the middle of the night to check the time, I remember that when my husband left the house that day, it was around 0:30, because I was too sleepy, I quickly continued to fall asleep and did not talk to my husband." ”

At around 0:30, it is true that most people are asleep, and if they choose to go out at this time, they must be connected with the mysterious employer.

"And what about the time he came back?" Ouyang Lan asked eagerly.

Yang Ziming said on the side: "Sister Zhang, don't worry, you can slowly recall." ”

Zhang Mintao tried hard to recall again, suddenly remembered something, and said: "When my husband came back, he did wake me up, but my phone ran out of battery at that time and turned off automatically, so I don't know what time it was, but ......"

"But what?"

"I seem to hear the next door neighbor's house going out to buy goods. If it was, it would have been around 4 a.m., and that neighbor usually went out at 4 a.m. to get his goods. ”

This is a very important and very exciting information, if what Zhang Mintao said is true, then the time for Li Tian to go out for a trip, from 0:30 in the middle of the night to 4 o'clock in the morning, counting the time on the way back and forth, Li Tian spent a total of three and a half hours outside, then the approximate range of activities can be determined.

Ouyang Lan said gratefully: "Sister Zhang, this information of yours is too critical and important to us, I believe that your husband's case will soon be revealed." ”

Zhang Mintao also became excited when he heard the police officer's statement: "If I can really find the real culprit and let my husband look blind, I will definitely remember the great kindness of your police forever." ”

To be honest, Zhang Mintao has been waiting for this day for too long, although she usually doesn't want to mention it, she has always had an expectation in her heart, looking forward to the murderer of her husband being arrested and brought to justice. In the eyes of others, Li Tian is a bad guy who causes trouble everywhere, but in Zhang Mintao's eyes, he is a good husband who loves his wife and a good father who loves his daughter, so her husband's death hit her very hard and changed her a lot.

"I beg you, you must arrest the murderer. Zhang Mintao saw hope again, couldn't suppress the emotions in his heart, and knelt down in front of Ouyang Lan and Yang Ziming, and tears couldn't stop flowing.

Ouyang Lan hurriedly helped Zhang Mintao up and promised her that if she took over the case herself, she would definitely let the real murderer be brought to justice and let the truth come out.

During this visit, Ouyang Lan and Yang Ziming almost reviewed the entire case of the flying knife murder case, and added some reasonable guesses to make the case clearer and clearer.

Judging from the murderer's motive, this is a typical case of murder and extermination, in order to cover up another more terrifying and major case, and the case behind it is a major illegal and criminal incident carried out by Li Tian at the instigation of a mysterious employer, which may be a homicide case, a drug trading case, or a case involving corruption.

Back in the bureau, Yang Ziming and Ouyang Lan circled the suspicious range, and conducted a fixed-point investigation of the cemetery within the range, made strict deployment, and sent five teams to the suspicious cemetery to conduct a special investigation.

Ouyang Lan and Yang Ziming naturally took the lead and led the team to the investigation area respectively.

Ouyang Lan led the team to Ningzhou County, 50 kilometers away from Jiangxia City, accompanied by five other male colleagues and one female colleague.

According to the normal driving speed, it takes an hour to reach Ningzhou County, counting the traffic lights and speed limits.

Entering Ningzhou County, the roads here are obviously much worse than those in the urban area, and the surrounding areas are becoming more and more barren, which is more similar to the environment described by Zhang Mintao, which also gives Ouyang Lan confidence.

As the car slowly drove forward, Ouyang Lan felt that he was slowly approaching the truth.