Over the years, Wei Hong has shared an office with Ping Yuping.

As soon as she entered the office, she rushed to Jiang Yuping, looked at her best friend, and asked:

"Hey, hey, Yuping, have you ever thought about who the deceased might be?"

After hearing this, Jiang Yuping slowly put down the Sherlock Holmes book in her hand and looked up at Wei Hong.

"I haven't thought about that. Who is it?"

Wei Hong walked up to her best friend, grabbed Jiang Yuping's hand, and said somewhat nervously:

“Yuping, do you remember that morning when we were riding our bikes to work together and we reached the top of Orange Gully, there was an old man staring at us? And that noon when we were eating in the cafeteria, that old man was sitting at the table behind your old Qiu, and it seemed like he was staring at us too.”

Upon hearing this, Jiang Yuping did not appear particularly surprised, but rather remained calm and composed.

She simply gave a soft "oh":

"Wei Hong, are you saying that the person who died was that old man with the scar on his face?"

"Yes, yes, that's the old man. Yuping, you watch Sherlock Holmes solve cases all day long. Tell me, what would someone want from killing such a wretched old man? He has no lust, no money, and he committed the crime in the morning."

"Wei Hong, are you sure that old man was killed in the morning?"

"I've worked as a forensic doctor, so I'm sure of that. It should be between four and six o'clock."

“Wei Hong, you really shouldn’t just be a regular doctor in our factory clinic. You should go to the public security bureau and become a forensic doctor.”

"Oh dear, I only came to Hongqi Factory and to this remote mountain village because of my husband, Lao Xiao. Let's not talk about that."

After saying that, she stared at her best friend and asked again:

"Yu Ping, don't you like reading mystery and crime novels? Can you analyze for me what the murderer's purpose and motive were in killing the old man?"

"Hmm, this---".

Jiang Yuping thought for a moment, then looked at her best friend and gave her explanation.

“There must be a reason for killing someone. For this old man, either someone wanted to take money from him, after all, there are still many people who are starving these days, and it is not impossible for them to kill for survival, or it was for some special secret, such as the old man having someone else’s secret, and that person killed the victim because they were worried that the secret would be exposed.”

Wei Hong immediately shook her head:

“I don’t think this is an ordinary murder case. There must be many stories behind it. I agree with what you said about it being for some secret. You know, the murderer is cruel and definitely not an ordinary person.”

"Was the murderer so cruel?"

"They drove a nail into the back of the old man's head."

"Why didn't the old man resist and let them nail him to death?"

"So, the old man must have been poisoned first, and then the nail was driven in."

"poison?".

"During the autopsy, I discovered that the deceased had potassium cyanide poisoning."

"If the old man was poisoned, why did the murderer drive a nail into the back of his head? Wasn't that unnecessary?"

"Perhaps only by catching the murderer can the mystery be completely solved."

As they were talking, the phone on the table suddenly rang.

Jiang Yuping reached out and took the phone.

Upon hearing that it was her husband, Qiu Jingwen, calling, she asked:

"Old Qiu, is that you?"

Qiu Jingwen asked his wife on the other end of the phone:

"Yu Ping, I just came back from the workshop. I heard there was a murder at the factory, and the body is being kept in your clinic?"