In the dim study room, several uniformed police officers stood or sat around a wooden desk. A laptop was open on the desk, and the weak light reflected the serious and dignified faces.
There is only one folder on the computer desktop. When opened, it is densely packed with text. The content reads:
"Hello, fellow police comrades. When you see this, it proves that I am dead...
"As soon as I opened my eyes, there was darkness. I longed for light but hated light. I was in hell, and I was a ghost seeking revenge. How could I know how to be a good person?
"If you have enough time and patience, you might as well take a look at my story and my 26 years of life..."
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