After returning to the police station, the police immediately checked the contents of the card, and unexpectedly found many photos of girls in it, and even some photos he secretly took on the subway.

Lao Ji sighed while watching, sure enough, people can't look good, and then the police invited the girl in the photo to the police station to cooperate with the investigation. From their mouths, they learned that they, like Ma Shasha, were assaulted when Qian Xiaoshuai took pictures of them, and they were worried that they would not be able to raise their heads at school when the matter spread, so they did not choose to call the police.

When investigating the information of these victim girls, Lao Ji found a common denominator, that is, their family conditions are not particularly good, and they are also taciturn and inferior in the class.

In this way, Qian Xiaoshuai concluded that these girls did not dare to speak out, so he specifically attacked them. Qian Xiaoshuai in the interrogation room had no choice but to admit the fact that he had violated Ma Shasha in the face of human and physical evidence in the hands of the police.

But he still insisted that he left before five o'clock, and that Ma Shasha was still alive and well when he left. In order to clear the suspicion, Qian Xiaoshuai even suggested that the police check on Wang Wei, because when she was at school two days ago, she had said that she went to see Ma Shasha after she left. And he already knew about the matter between him and Ma Shasha, plus Wang Wei had always been in love with him, so he suspected that Wang Wei killed her out of jealousy of Ma Shasha after he left.

Leaving the interrogation room, Cuong also found anomalies when he checked the time when the memory card photos were taken, including a photo taken secretly on the subway, and the time showed that it was 5:10 p.m. on the day of the crime.

But at about half past six after Wang Wei received the call, Ma Shasha had not been killed when she arrived at the factory. In this way, this photo has become Qian Xiaoshuai's alibi.

In order to find out the truth of the case, the police took Wang Wei to the police station as a suspect this time. Faced with Qian Xiaoshuai's identification, Wang Wei explained everything very sadly.

She said that when she rushed over that night, Ma Shasha's clothes were disheveled and her face was bruised. Looking at her trembling expression, she quickly understood what was going on. But when he saw the necklace tag on the ground, she suddenly realized that the person who had just been with Ma Shasha was Qian Xiaoshuai, whom she had always liked.

She asked Ma Shasha why she wanted to meet Qian Xiaoshuai here behind her back, and Ma Shasha began to vent her dissatisfaction with her after hearing this. She thinks that she has always been Wang Wei's foil, and this time it was Qian Xiaoshuai who lied that he would also come, so she came to the appointment.

After saying that, Ma Shasha left the factory crying, and she felt that she might really misunderstand her good friend, so she quickly chased after her. But strangely, she didn't see any trace of Ma Shasha when she came out. The environment scared her, so she ran straight home.

When she came out of the interrogation room, Sister Xi also completed the screening of the footprints at the scene, and found that in addition to the deceased's own footprints, there was also a pair of 42-yard labor protection shoe prints that appeared at the scene.

Judging from Wang Wei's mouth, she found that Ma Shasha was missing after chasing her out. If what she said was true, then the owner of the labor protection shoes was the murderer who strangled Ma Shasha.

But everyone is still very puzzled, how did the murderer know that Ma Shasha would come out of the factory at that time? And why did this person attack Ma Shasha?

Lao Ji suddenly remembered the yellow coat, and he doubted that the target targeted by the murderer in advance would be Wang Wei in the coat. And Wang Wei lent her clothes to Ma Shasha, and it was dark, so the murderer mistakenly killed Ma Shasha as Wang Wei.

In this way, the murderer should be someone who has a grudge against Wang Wei, but who can a little girl have a grudge with? Cuong guessed if it had something to do with her family.

The police immediately investigated the information of Wang Wei's parents and found that his father, Wang Lin, had been prosecuted for arrears of wages to workers three years ago. The prosecutor was named Ge Wei, and his wife was seriously ill and urgently needed to pay for the operation, but because of Wang Lin's arrears, his wife died because of the failure to complete the operation.

This person is likely to take revenge on Wang Lin for this incident, but since no direct clues have been found yet, Lao Ji plans to go to his house to investigate first, and when he comes here, he finds that only her daughter Ge Ting is at home.

Lao Ji lied that he came for the prosecution case that year, and Ge Ting thought that her father's money had been settled, so she immediately called Ge Wei. Lao Ji took the opportunity to observe the environment of his home, and found that there were dried fish hanging everywhere in the house, and there were several knotted ropes on the shelves.

He vaguely felt that the lines of these ropes were very similar to the strangulation marks on the deceased's neck, so he took a photo and sent it to Sister Xi, who immediately compared it with the strangulation marks after receiving the photo, and found that this rope was the murder weapon that strangled Ma Shasha.

Ge Ting has been unable to get through to her father's phone, she said that her father usually comes back soon after seeing the message, so she asked Lao Ji to sit down for a while.

During the conversation, Lao Ji found that there were many empty medicine bottles in the trash can next to him, so he took advantage of Ge Ting's inattention to take one and put it in his pocket. Half an hour passed, but Ge Wei never called, and Lao Ji also took the opportunity to leave here.

When he returned to the police station, he gave the medicine bottle to Sister Xi, who looked at it and found that it was a medicine that was only taken in the terminal stage of cancer. So Ge Wei chose to take revenge at this time, because he realized that he didn't have much left.

But now Ge Wei is nowhere to be found, and even the phone calls of his daughter, who is dependent on him, are not answered, and the police suspect that he may have gone to Wang Wei or his father.

After Wang Wei's mother learned that her daughter was in danger, she immediately called Wang Wei to go home, but Wang Wei was arrested as soon as she answered the phone. According to the information provided by Wang Wei's mother, the police rushed to the nearby lake, at this time Wang Wei was strangled by Ge Weisisi, and when she was about to suffocate, the police appeared in time and saw Ge Wei who was committing the crime.

The police hurriedly stepped forward to arrest Ge Wei, Ge Wei looked at Wang Wei unwillingly, his eyes were full of hatred for the girl.

After bringing Ge Wei back to the interrogation room, Ge Wei explained everything very simply, and he admitted that he wanted to take revenge on his father by killing Wang Wei at first, because in order to operate on his wife, he not only sold everything in the family, but also groveled to borrow a lot of money from relatives and friends.

He originally calculated that his salary was just enough to operate on his wife, but he was unexpectedly delayed by Wang Wei's father. If it weren't for Wang Lin, his daughter would not be looked down upon all day long, and he would not have been suffering from cancer with alcohol all day long.

After hearing this, Lao Ji asked him why he wanted to put this grudge on the innocent Wang Wei, Ge Wei said viciously: What kind of father has what kind of daughter, one day the daughter came home after school and went back to the house directly and began to cry, he asked his daughter what happened, and the daughter actually said that Wang Wei publicly laughed at her in the class for wearing a dress on the stall.

At that moment, he secretly made up his mind that he must make sure that their father and daughter pay the price they deserved...