Research

I will not return to Dhaka until I can catch my sister's killer.

-Well. I was saying that as long as you are here I will send people for your safety.

- He won't need it, Mr. OC. I can provide my own security.

-Hmm, I understand that when you don't take people, either do one thing or keep this pistol (with a pistol forward) with you all the time.

- You have a pistol, mother.

- No problem. I have the power to give it to you. But when the work is done, give it to me.

- Well, can I come today?

-Yes, of course. But be careful.

- All right

After saying this, Mr. Rafi came back to the bungalow. He came home and looked at the pistol. He saw the loaded pistol. He got angry when he saw three bullets inside the pistol. 
After seeing the pistol, he put it under the pillow and ate it and went to bed. He woke up when he was feeling drowsy. 
As soon as he came down, he heard the sound of gunfire and three shots at the sound and he was hit by someone.