I didn’t Shoot by Ilariya

Here he is.
I was chasing him for so long. I already called for a backup, but I cannot risk him getting away. So I am going after him. One of the windows on the first floor isn't locked. That’s actually funny, we were chasing him all over the country, and he always was there, living in this lovely neighbourhood. The bastard would do anything for money. He has a long list of victims. If someone wants to get rid of someone with 100% guaranty, one was going to him. We are not even sure that we know about all his victims. He will probably get a death sentence when we finally catch him. Some voices are heard from upstairs. He is not alone? We know he always works alone.  it a child? It can’t be! He got a hostage. My hands in which I carry a gun are sweating. Situations with children hostages are never easy. Should I go out and wait for a backup? No, No. If he will suspect anything, he will go. We will never find him again.
On the second floor, the door from which voices are heard is slightly open. That's weird. It does seem to be a girls bedroom. The man who became a synonym of death is sitting on a carpet with a girl of the age of six and playing with her. ‘ Daddy, why we play so rarely together? I want to play every day with you,’ the girl is looking at the man. ‘You see, darling, I was waiting for you for so long, but your mather and I can’t get a baby for so long. So when your mom finally got pregnant, we were so happy. But pregnancy was hard, and soon after your birth. I promised her that you would have everything best. But then I made a mistake on a job. I was fired and could find a new job. I was so afraid you would be taken from me because I am a bad father. And then one friend proposed me to do one job for him. It wasn't something I wanted to do for life, but it paid well. Well, let’s say I am helping people to solve their problems. So now I can buy everything you deserve...’
He is saying something else, but I am not listening. He has a daughter... He did everything he did for her... No, no, of course, it’s not an excuse. Daughter… I have to get out of here. I don’t know Why it has shaken me so much, but I couldn’t stay here. I have to get out of this house. I will wait for the backup, tell him that there is a child here. I almost run. And then one of the stairsteps creak. He is practically immediately near the stairs. He is reaching for a gun. I should shoot, but I ... I can't. My hands are shaking. How can I shoot if there is his daughter in the house?  I pointed a gun at him but just can't shoot. I don't shoot.
He does.