At one o'clock in the afternoon, an undercover officer entered the conductor's room to report that Xue Zhengying had something to say.
Coincidentally, the conductor, Ming Jiushun, and Si Jianxuan were discussing the case, so they immediately let him in.
Xue Zhengying appeared somewhat uneasy as he spoke, "My wife, Xin Yue, seems to have seen the murderer from last night."
"What happened?" Ming Jiushun asked with immediate interest.
"She’s not very sure. She said that when she went to the restroom last night, the restroom in their car was occupied. So she searched several cars and finally found an empty restroom in the dining car. Just as she was about to enter, she heard some muffled sounds from the adjacent Smoking Room, like something had collided, and then a crew member came out. As she walked into the restroom, she saw another crew member coming out of the Smoking Room."
"Since Gu Qiuxian's car is connected to the dining car, she kept recalling today and remembered that Gu Qiuxian's bunk was empty when she passed by. So she wondered if the person who came out of the Smoking Room could be the murderer. She doesn’t even know if that person saw her clearly."
"My wife is terrified right now. She says she gets scared whenever she sees a crew member. I suggested calling the police, but she’s too afraid. So I quietly slipped over to see if I could provide you with a clue."
Si Jianxuan interjected, "Did your wife see what that person looked like?"
"I asked her that too. She said it was very dark in the car at that time, so she couldn’t see clearly. But if she saw him again, maybe she could recognize him. She also mentioned that the person didn’t head towards the Sleeper Car. When she came out, several people were walking from the sleeper side, while there was no one on the other end; that crew member must have gone towards the Hard Seat car."
"He went to the Hard Seat car?" Ming Jiushun frowned as he pondered this.
At that moment, the Fat Conductor who had brought Si Jianxuan in rushed in with a panicked expression. "Not good! Not good! Conductor, another person has died on our train!"
The conductor was somewhat displeased. "What do you mean by 'another person has died'?"
Seeing this crew member, Xue Zhengying suddenly trembled all over.
The crowd said no more and quickly rushed outside.
In front of the restroom of Sleeper Car No. 9, many passengers gathered, blocking the entrance and murmuring among themselves.
Several train police officers struggled to push them back.
A pool of blood was seeping out from under the restroom door, which refused to budge.
A train attendant mentioned that the door had been locked from the inside, so they still didn't know who was dead inside.
The train conductor had no choice but to call over a police officer, who took five minutes to pry it open with pliers.
When the door finally swung open, a collective gasp erupted from the onlookers.
The deceased was a woman. Ming Jiushun and Si Jianxuan both felt a sense of familiarity; wasn't this Xin Yue, the wife of Xue Zhengying, who had just come to provide clues?
In the back, Xue Zhengying saw her too and immediately collapsed to his knees, fainting on the spot.
Xin Yue lay slumped on the restroom floor, her complexion pale and eyes wide open. A deep gash marred her neck, indicating that an artery had been severed. The blood flow was minimal now.
Most of her blood had already drained into the squat toilet. She still clutched a fruit knife in her hand, though her grip was loose.
Could it be that she was recognized by her assailant and thus met with retribution?
However... Ming Jiushun took a closer look; this cramped space could barely accommodate a squat toilet.
Although the window was opened halfway, it was only wide enough for a head to poke through. Outside, the wind howled, and the area around the window was smooth and unclimbable.
Even if the murderer managed to crawl out of the window, it would be impossible to climb onto the roof of the carriage, let alone reach the window of the adjacent Smoking Room.
There was more than a meter of distance between here and there, with nothing to aid in climbing.
He then examined the condition of the door latch.
The latch could only be secured from the inside. Outside, there was a blue plastic ribbon indicating that someone was using the room, making it impossible to fasten the latch from outside.
If the deceased did not commit suicide, could this be a locked-room murder?
Si Jianxuan finally squeezed his way through the crowd. The Fat Conductor, who had previously "grabbed" him, now became quite attentive and helped clear away the onlookers. In the process, he accidentally bumped into a thin, dark figure.
To his surprise, the person he bumped into actually apologized to the Fat Conductor before retreating back into the crowd and quickly leaving the carriage.
Feeling slightly puzzled, Si Jianxuan pulled at the bathroom door, opening and closing it repeatedly.
Ming Jiushun noticed that when the door was closed, there remained a slight gap.
What had this old classmate discovered now?
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