Xu Yao was very interested in this part and asked immediately, "Can you tell me in detail what your father said about your grandfather?"

The boy said, "He seemed to say that one day he would make his grandfather regret it, saying that my grandfather would not be a coolie and was nothing special."

"Yesterday was Sunday, and you stayed at home the whole time. Was it your father who took care of you?" Xu Yao touched the child's head and asked kindly.

The little boy nodded, "Yes. After Dad and Mom quarreled, Mom ran out crying.

How long did your dad stay at home before he left?"

Yesterday I was doing my homework in the living room. At about 4:30 in the afternoon, my father came out of the room and sat down opposite me. He took out a lot of snacks from the refrigerator for me.

He said, "Xuanxuan, Dad went out to meet a friend and will be back before dinner. Xu Yao asked the child, "

Did that friend call your dad before he left? Or did your dad say anything on WeChat?"

"No one came. I don't know whether he received the call or not. My dad was playing games in the room and I was in the living room. I was wearing earplugs, so I couldn't hear him even if he answered the phone."

Xu Yao also knew that under this background, Luo Chengjun would never choose to commit suicide. So the fact that he remembered this mysterious friend before he left must be related to the case.

The phone call is a blind spot for now, but it's not too tricky. Just go back and check the call records.

At this time, Xu Yao suddenly remembered that Luo Chengjun brought his mobile phone when he went out, but the mobile phone disappeared at the scene of his jump. He found a suicide note written by Luo Chengjun himself in the room.

There were no signs of murder in the room on the third floor of the KTV where the incident occurred. All signs indicated that Luo Chengjun was too irritable and troubled by some kind of mental illness. He jumped directly from the third floor window and committed suicide.

Xu Yao had one last thing to confirm with the little boy.

"It is said that your father has been going out to meet someone frequently in recent days. Is that true?"

Xuanxuan was silent for a while, nodded, and replied, "Yes."

"How do you know? Aren't you still in school from Monday to Friday?"

Xuanxuan said, "I only need to pay attention to the shoes at the door to know whether my father is out or someone else has come to my house. I can find out as soon as I open the shoe cabinet."

The child was only seven or eight years old, but he was in such a state of mind.

Xu Yao asked again, "Then how do you know whether your father went out to meet someone or just went out to the supermarket or buy groceries?"

According to Li Li, her husband has been a housewife at home recently, taking the children to and from school.

The boy looked at Xu Yao and said, "The shoes he wears are different. When my father goes out to buy groceries or go to the supermarket, he only wears a pair of very old sneakers, but these days, my father always polishes his leather shoes and wears them very carefully."

Xu Yao admired this child, he really has the potential to be a criminal police, but he didn't want to change the subject, so he asked again.

"Have you told your mother about this?"

"Yes."

"You have suspected your father for a long time, right? Otherwise, why would you pay attention to that shoe cabinet?"

The boy raised his head naively to defend himself, "Shouldn't I be suspicious? My mother wanted a divorce, but he refused to agree. How could his attitude change so quickly? He must divorce my mother in a hurry and even beat her if my mother disagreed."

Xu Yao continued to ask, "I heard from your mother that she once asked you to follow your father. Have you seen him with other aunts?"

"Yes, I followed, but I didn't keep up." The boy said disappointedly,

"My dad sent me a taxi, and I followed him, but the driver of my taxi was not very skilled and was always blocked by the car in front. The taxi was abandoned after passing two intersections."

Whether Luo Chengjun's death was really related to his mysterious lover, it is still unclear.

Was the mysterious man who Luo Chengjun met before jumping off the building my lover, or someone else?

The psychiatrist was also very suspicious.

It seems that we can only find out by investigating slowly. Seeing that

Xu Yao had not spoken for a long time, Xuanxuan took the initiative to ask, "Uncle police, do you have anything else to ask? If not, I will watch cartoons."

Xu Yao touched the boy's head again and stood up, "Okay, thank you."

Xu Yao came out of Li Li's house and kept thinking about and sorting out this case on the way.

Before Luo Chengjun died, the mysterious man's phone number also met the psychologist's phone number.

Could this mysterious man be Luo Chengjun's mysterious lover?

Knowing these answers, we must confirm them one by one. Xu Yao held the phone number in his hand, on which was the address of the psychological clinic written by Li Li herself.

At the same time, he called Liu Xiaobo and asked him to find out Luo Chengjun's mysterious lover as quickly as possible.