So I called a friend of mine to ask him to check who the owner of that phone number was. This might be a clue.

In the next few days, I visited several neighbors near Lin Lan's house.

From their mouths, I learned that Guo Kai, like his brother, was a gambler!

Because of this, the relationship between the brothers was not good. Before his brother got into trouble, the two families hardly interacted.

Now they are so close, which is only a recent thing in the past six months.

This is not a normal situation.

Why did Guo Kai change so drastically? Is there some hidden story behind it?

It seems necessary for me to have a chat with him.

Back at the hospital, Jia Jia's condition has also improved.

I called Guo Kai outside.

"Brother Kai, as far as I know, your relationship with your brother is not good. Why are you willing to help your sister-in-law so much?"

"This... I just feel that my sister-in-law has suffered too much hardship marrying into our Guo family. What I am doing now is a kind of compensation."

He hesitated for a moment, his face turned red, and he spoke hesitantly, looking very embarrassed.

"Can I interpret this compensation as liking her?"

"You can say that. Before, because her family was poor, I disapproved of her. I even tried to stop their marriage in many ways, but after spending more time with her, I found that she is someone worth liking."

Before I could say anything else, a nurse walked over.

She informed us that Jia Jia's attending doctor had prepared the discharge papers, and we could proceed with the discharge procedures.

Hearing about the discharge, I felt very surprised;

Jia Jia now needed timely treatment, not to be discharged.

But his answer left me speechless.

The treatment for leukemia requires hundreds of thousands, and ordinary families simply cannot come up with so much money in a short time. He needed to go back and raise funds.

Looking at Guo Kai's face showing a depressed and helpless expression.

I said nothing more and stood up to leave the hospital.

At that moment, the phone rang.

The owner of that phone number had been identified; it was Guo Kai!

This surprised me greatly. Could it be that Guo Kai had lured Jia Tianwei out?

They actually knew each other! Could Guo Kai also be the murderer?

But Guo Kai treated Jia Jia, his sister-in-law, exceedingly well.

And murder requires a motive. What would his motive be?

Could it be that Guo Kai saw Jia Tianwei trying to rape Lin Lan and accidentally killed Jia Tianwei while trying to stop him?

After a long while, I had a plan. I decided to test Lin Lan to see how she would react.

When I saw Lin Lan again, she seemed a little impatient.

"Sister Lan, I have met Guo Kai. Do you really want to take the blame for him? Do you think it's worth it?"

When she heard me say that, she seemed a bit surprised. She apparently didn't expect I would find out so much.

"It's not about taking the blame. He was just at the scene; he didn't see me kill anyone."

This answer confirmed my suspicions. Indeed, there was a third person at the scene, and it was Guo Kai.

"Sister Lan, you are indeed hiding something from me. I was bluffing you."

Her face showed an expression of both shame and annoyance. She finally took a long breath.

"Sister Lan, the scene was all cleaned up by Guo Kai, leaving no useful clues. If you want to clear your name, you have to tell me everything exactly as it happened. Don't worry, it won’t involve him."

If what she said is true, there is no need for her to take the blame.

Even if he was at the scene but did not participate in the killing, he wouldn't face severe punishment.

Neither of them would be in any real trouble.

"Things happened just as I said that day. After I killed him, I was scared to death and hid in a corner. Then, he came."

"And then?"

"Then he wanted to take the blame for me. This is my business. How could I let someone else take the blame? So I told him to leave."