In my eyes, Liu Lei is a very special person, like a mystery that I can't figure out.

He moved across from us a month after we moved into our new home.

This building has three apartments on each floor, but the corner unit on our floor had been empty all along.

Liu Lei initially got close to Yang Kai. It's easy for men to find common topics of interest, so Liu Lei became a frequent visitor to our home after a few interactions.

At first, I also thought he was a warm-hearted good neighbor, but over time, I gradually realized something was off.

"What's off?" Captain Xia frowned and asked me.

Unconsciously, I clenched my hands, a disturbing memory flashing through my mind.

"He... he once tried to assault me..."

I don't know when it started, but Liu Lei always seemed to appear downstairs at my workplace, in the mall where I shopped with friends, and even... he once broke into our house.

I still remember that afternoon, probably at the end of last month, I came home early. In no time, I found Liu Lei brazenly sitting on the living room sofa. I was startled, and before I could question him, he rushed forward and pinned me to the ground. If I hadn't fiercely resisted, the consequences would have been unimaginable.

After that incident, I could no longer treat Liu Lei with a normal heart. Whenever I saw him, I felt terrified, and so I suggested to Yang Kai that we move out, but Yang Kai disagreed.

"Oh?" Captain Xia showed a surprised expression, somewhat incredulous. "Your fiancée was almost assaulted, and he had no reaction at all?"

I bit my lip and explained, "Because I didn't tell Yang Kai the truth. I love Yang Kai very much, and I was afraid he would despise me for it. Moreover, Liu Lei and I didn't go all the way..."

Captain Xia nodded understandingly. "Exactly because these criminals expect you won't dare to speak out, they become even more reckless."

What he said was true. Liu Lei did become more outrageous in harassing me later. Helplessly, I again suggested several times to Yang Kai that we move out.

But we were still paying off the mortgage. Yang Kai felt that renting another place was unnecessary trouble. We quarreled a few times over it, and it was during those quarrels that I discovered he was still entangled with his ex.

In my anger and madness, I paid no attention to Liu Lei any longer.

I just wanted to hold onto Yang Kai's heart. I loved him more than my own life, so I would not allow anyone to take him away!

But I never could have imagined that it would end this way...

I covered my face and wept bitterly, tears streaming through my fingers, but my mind was firmly convinced of Liu Lei's guilt.

"It must have been him. He wanted me so badly, but Yang Kai was in his way, so he boldly killed Yang Kai! The third set of footprints found in the bedroom must be his!"

The information I provided undoubtedly gave Captain Xia a crucial lead in his investigation. After a few words of comfort, he immediately went out and knocked on Liu Lei's door.

However, after knocking for a long time, there was no response. Captain Xia had no choice but to call the property management and surveillance people.

According to the surveillance footage, Liu Lei left his home the day Yang Kai and I had a fight. Almost the moment I walked out of the neighborhood, he entered the elevator, looking a bit agitated and moving hastily.

To protect residents' privacy, surveillance was only installed in the elevator, so no one knew what Liu Lei did that day or why he hurriedly took the elevator.

The only clear point was that he never returned after leaving the neighborhood that day.

Captain Xia realized something was wrong and directly broke into Liu Lei's home with tools from the property management.

Forensic testing matched the shoes found at Liu Lei's home with the third set of footprints detected in our bedroom; the results were a complete match.

Even more shocking, Captain Xia found a stack of scrap paper in Liu Lei's study, filled with useless drafts, and the handwriting turned out to be exactly the same as Yang Kai's.

This indicated that he had been secretly imitating Yang Kai's handwriting without us noticing!