To be honest, I felt a bit scared after reading it. It's nighttime now, oh my little heart… Here is the main text: Detective Wang: Hello! I am a butcher, that is, someone who sells meat. You can just call me Amin. Actually, I am not the main character; the main character is my neighbor Zhang Da. I suspect Zhang Da killed his wife, and indeed his wife hasn't appeared for a long time, yet Zhang Da says she went back to her parents' home. Later, one day while our family was having a meal, my son told me something supernatural, which made me have to suspect that it was actually Zhang Da who murdered his wife. I should also mention Zhang Da's only son, Zhang Cong. My son heard this from Zhang Cong while they were playing together. Zhang Da killed his wife. To hide the body, on one hand, he buried his wife's body in the corner of the yard, while on the other hand, he thought about how to deal with his son who would soon be coming home from school. Burying a body is hard work, and it just so happened that Zhang Da's health wasn't good and he had a chronic back pain. After burying the body and washing his hands, he leaned on the living room recliner and turned on the TV, which was also something he did most often. Later, his son came home. Zhang Da wanted to wait for his son to ask where mommy was and then reply, 'Mommy went back to her parents' home for a few days.' His son was still young and didn't know anything. However, after Zhang Cong returned, he didn't ask about mommy; instead, he went back to his room to do homework alone. Zhang Da found this very strange but didn't think too much and went to make dinner. Usually, it was his wife who prepared dinner, so this was the first time Zhang Da made dinner and he was exhausted. After serving a bowl of rice, he leaned on the recliner and shouted for his son to eat. Zhang Cong came out of the room to get a bowl of rice, looked at his father and said, 'Dad, can I eat with you in the living room? I also want to watch TV.' 'Watch what TV? Hurry up and finish eating and then go study!' Zhang Da shouted, perhaps angry that his son didn't ask about mommy's whereabouts. Zhang Cong finished his meal and quickly went back to his room to read, while Zhang Da watched TV alone in the living room. Suddenly, he remembered his son just asked, 'Can I eat with you?' 'With you guys?' Zhang Da felt a chill on the back of his neck and his back grew cold as he leaned on the recliner, because he was the only one in the living room! A slip of the tongue, a slip of the tongue, it must be that, Zhang Da comforted himself. The next morning, Zhang Cong went to school.Because Zhang Da usually gets up very late, Zhang Cong always takes money and goes to the street stalls to buy breakfast by himself. But today, Zhang Da woke up very early, yet stayed in bed. After his son left, Zhang Da quickly went to the place where the body was buried yesterday, and found nothing unusual. So he decided that at noon today, he must get to the bottom of things with his son. He made lunch, ate a little by himself, and then sat in the lounge chair to watch TV. After a while, his son came home from school at noon.
"The lunch is in the kitchen, help yourself," Zhang Da said coldly.
Zhang Cong said nothing, just served himself a bowl of rice and sat in the living room to watch the midday news with Zhang Da. At this point, Zhang Da could no longer restrain himself.
"Cong Cong," Zhang Da said, "Mom has been gone a long time. Don't you want to ask about it?"
Zhang Cong looked at his father: "Who said that? I'm actually the one who's curious. Dad, why are you always hiding things from Mom?"
At that moment, when I heard my son tell me this story, my scalp went numb. I thought, Zhang Da's son really has no reason to make such a joke, right? So Detective Wang, please make sure to investigate this matter. If my neighbor Zhang Da really murdered his wife, you absolutely must not let him go!
Please reason, is this story believable?