Li Ze glanced at Xie Qi before turning to look at the clues on the table. He picked up a family photo and said, "Fifteen years ago, my eldest son was seven years old. The photo was in color. Even if he was still an infant, it was only seven years. The time jump wouldn't be that big. The photo wouldn't be much different either."

Li Ze said, pulling out the baby photo from the deceased's father's wallet. "This photo is black and white. Both the material and the quality show that the technology is at least several decades behind. It looks more like it was taken when the old man was young. So I guess these two baby photos are not of the eldest and youngest sons."

Li Ze: "If it's not a photo of the two grandchildren, then it must be a photo of the son. In other words, a photo of the deceased as a baby. I was always confused as to why there were two babies in the photo until I saw this letter."

Li Ze said as he picked up the clues Wang Qi had found.

[Hello, dear brother. I'm your younger brother, a stranger. Did you know that Dad has always felt guilty about you? Every time he mentions you to me, Dad gets very sad. I think Dad loves you...]

Li Ze: "First of all, the letter says that I am the younger brother of a stranger, and that's the problem. The eldest son and the younger son knew each other, so there is no such thing as a stranger. Also, the letter says that Dad loves him and feels guilty about him, but the deceased didn't love the eldest son and even abused him. That means this letter wasn't written by the younger son to the eldest son."

Lu Fengcheng: "If it wasn't written by my youngest son, then who was it?"

Hearing this, Li Ze said with some regret, "I originally suspected that it was written by the deceased because I saw the photo of two babies. I also previously suspected that the deceased had a brother. But in the end, I found that it didn't seem to be the case."

Li Ze said as he took out a book and opened the first page: "This is the signature of the deceased, but the handwriting is different from this letter."

Xie Qi was stunned when he heard Li Ze's last sentence. This was because Li Ze's previous reasoning was the same as Xie Qi's, but the last point was different from what he thought.

Xie Qi reached out doubtfully and took the book that Li Ze had placed on the table. He looked at the signature on it and said, "Huh? Is this the signature of a deceased person?"

Li Ze: "What's wrong?"

The more Xie Qi thought about it, the more he felt something was wrong. He had clearly seen the deceased's handwriting before and it was the same as the one in the letter, so why was the one Li Ze found different?

Xie Qi looked seriously at the clues spread out on the table, then stood up suddenly and reached out to pick up the newspaper across the table.

Fifteen years ago, the serial killer, Officer Bai, was executed by firing squad.

Xie Qi continued to flip through the pages. The murderer had a bald head and a big beard. Xie Qi then remembered that during the autopsy, the hair of the corpse was pushed off, leaving it with a bald head.

Moreover, the deceased's mouth was glued shut. What if the glue was not used to glue the mouth, but to glue the hair?

A face full of hair, isn't that a beard?

The more Xie Qi thought about it, the more surprised he became. He couldn't help but utter a sound: "Fuck!"

Bai Yu: "No, Xie Qi, what did you think of?!"

Ke Qian: "That's what I'm saying! Don't rush me."

Xie Qi looked up at everyone else, said, "Wait for me five minutes!" and quickly left the meeting room.

Five minutes later, Xie Qi had a pile of documents and books in his arms.

Xie Qi opened all the signature and writing spaces in the document and placed it in front of them.

Xie Qi: "Do you see what's wrong?"

Li Ze: "Two handwritings? And one of them is the same as the one on the letter."

Xie Qi: "That's right! If you classify the documents according to the time on them, you'll find that the handwriting changed fifteen years ago."

Xie Qi: "The deceased must have had an older brother, and this brother was lost when he was very young. That's why the old man has kept this baby photo and feels guilty about his son."

Xie Qi: "The handwriting changed fifteen years ago. It's very likely that the elder brother returned and took over the younger brother's identity. The mistress probably knew this, which is why she kept trying to poison her husband. The deceased's information about loving his wife and children, and being a philanthropist, is also likely an evaluation of the younger brother fifteen years ago."

Xie Qi took out a photo of a wanted criminal from the newspaper and showed it to them: "Bald head and big beard, does it look like the deceased's death?"

Lu Fengcheng: "Are you saying the murderer is your brother?"

Xie Qi: "Do you remember the note from Officer Bai that Ke Qian found?"

If all goes well, we will all be completely free. — Officer Bai

Xie Qi: "This report says that Officer Bai shot a murderer in a villa. If the older and younger brothers look very similar. The murderer threatened the hostess's life, shaved the younger brother's head bald, glued on a beard, and threatened to harm the hostess, then the younger brother would probably fight the murderer brother to protect his wife and children. If you were Officer Bai and saw this scene, what would you do?"

Yan Xingchen: "In order to protect the hostages, I will execute the murderer."

Li Ze: "Officer Bai killed the wrong person, so he feels guilty and wants to be free."

Xie Qi: "Yes, I don't know when Officer Bai found out, but he must have realized that he had killed the wrong person, so he wrote this note to the hostess."

Zhang Jile: "Could it be that the old housekeeper was also killed by the murderer fifteen years ago?"

Bai Yu: "Very likely."

Ke Qian: "Then why didn't the hostess call the police? The hostess should know about this matter."

Li Ze: "The mistress has a weak spot. The eldest son once said that he was willing to be trapped forever so that he would not harm them. This means that the deceased has been threatening the mistress with the eldest son."

Wang Qi: "Wasn't the deceased very kind to his youngest son?"

Xie Qi: "The youngest son's identity is very strange."

Lu Fengcheng: "Wait, wait, have you forgotten that the deceased had schizophrenia? Maybe the handwriting is different and it was written by another personality? Maybe he wasn't the murderer at all?"

Xie Qi: "Even if it was written by another personality, the strength and habit of holding the pen would not change. However, the handwriting above is obviously written by two people."

Xie Qi: "And look at this place."

Xie Qi placed the newspaper on the table and pointed at a spot. "It says here that every time a serial killer kills someone, he cuts off their tongue and places it in the victim's hand."

Xie Qi then took out the headless female corpse found in the deceased's room and said, "This female corpse also had her tongue in her hand. This is the murderer's habit. This is evidence that the owner of this villa has been replaced by the murderer."

Ke Qian: "Is this female corpse a maid? How come she died earlier than the murderer?"

Xie Qi: "This is what I don't understand now. And the identity of the youngest son is also very strange. The youngest son doesn't fit in with the atmosphere of this villa."

Li Ze: "Don't lose heart, at least we know the main plot now."

Yan Xingchen: "Oh! Forget it, time is almost up. After I am eliminated, the clues will be refreshed. Next time should be much easier."

Not long after Yan Xingchen finished speaking, the mechanical voice sounded again. They still did not choose the murderer, so Yan Xingchen and Ou Wanxing were tortured to death and disappeared.

It’s just that Yan Xingchen’s eyes were dug out and stuffed into his mouth.