After taking a shower, Ma Chengqun changed into work clothes and recorded the time Du Mei returned home in the alley she often walked.However, the team received an alarm call near Ma Chengqun's home. Wei Zhengrong and his teammates rushed over, alerting that Ma Chengqun might have gasoline and that dangerous situations might occur at any time.They also called firefighters to go with them.

When they arrived at the scene, many people had gathered around Ma Chengqun's home, and he was standing on the roof with three barrels of gasoline next to him.Wei Zhengrong was worried that something would happen if he impulsively lit the gasoline. When he asked him why, he learned that he just wanted to get more compensation through demolition.Wei Zhengrong asked his teammates to divide into three groups. One group persuaded in front of the house, while he led Lu Xingzhi to climb onto the roof, and the last group of teammates went to guard the back of the house.Lao Zhu's persuasion had just succeeded, but a villager suddenly added fuel to the fire and incited Ma Chengqun's emotions, causing him to lose control and pour gasoline.Lao Zhu hurriedly interrupted him and tried to persuade him to continue listening to the advice.

At this time, Wei Zhengrong and Lu Xingzhi reached the second floor, but they found it difficult to get to the third floor, so Lu Xingzhi lifted Wei Zhengrong up.Ma Chengqun heard some movement behind him and turned around to find Wei Zhengrong. He became nervous and picked up the oil drum to light it.Wei Zhengrong tried to step forward to stop him and tried to persuade him to calm down, but Ma Chengqun lost control of his body, lost his footing and fell down the second floor. He fell from the second floor to the first floor and passed out.Lu Xingzhi and Wei Zhengrong hurried downstairs to check on Ma Chengqun and found that he was covered in paint, indicating that he had recently been in contact with Du Mei.

Back in 2010, An Ning came to the police station to find Lu Xingzhi, hoping that he could go with her to worship his grandfather.Lu Xingzhi was worried that there was still a shadow in his daughter's heart, so he had already pulled her away.Wei Zhengrong lied that he was going to work overtime, but he was actually going to look for clues to the case.His colleague Hu Haixia had no doubts and just reminded him to pay attention to his health. After all, they were both old.Zhuang Zhuang knew that Wei Zhengrong was looking for Lu Xingzhi and had seen them at the train station before, so he also found an excuse to go out with Wei Zhengrong and proposed to him the idea of ​​taking the police academy exam.Wei Zhengrong was a little surprised, but did not answer his question directly.

Zhao Zhengming found that Ma Chengqun had six good properties in very good locations.Lu Xingzhi quickly divided the team members into six groups and asked everyone to act together to improve efficiency.Although there was no news of Ma Chengqun being found elsewhere, there was one where his ex-wife lived.His ex-wife said she did not know his whereabouts. Ma Chengqun's son revealed that he had returned two days ago and almost got into a fight with his ex-wife's boyfriend.They also found that Ma Chengqun's son had a property in his name, making a total of seven houses.Lu Zhengming was shocked.

Then, Lu Xingzhi and his team went to the chess and card room and asked the boss to clear the room immediately. Then they searched the surrounding rooms and found that one room was closed. They asked the boss to open the door and check. He found that it was an ordinary room, so there was no suspicion.At first, the boss said that Ma Chengqun had recently bought a car and was traveling across the country. He did not know his specific whereabouts. Until Lu Xingzhi suggested that making a call would be a meritorious service, the boss agreed to call the other party and asked Xiao Ming to stay and watch the boss.

Outside the public bathhouse, Wei Zhengrong was squatting. He was very sleepy while waiting, so he had to smell the wine he brought with him to refresh himself.The hard work paid off, Wei Zhengrong finally squatted down to Ma Chengqun, and then immediately called Lu Xingzhi.

In 1997, a hammer was found in Ma Chengqun's home. It had no traces on it and was very clean. Although it matched the traces on the victim's head, it was a bit difficult to determine whether it was the murder weapon.But this kind of hammer can be seen in every household, so it cannot be used as favorable evidence.Ma Chengqun said that he had no murderous intention and just wanted to get close to Du Mei.After listening to Ma Chengqun's words, Lu Xingzhi thought that the murderer might be calmer than Ma Chengqun.