a las vegas police officer always dreamt of having a big family. and suddenly, now he has one. cnn's natasha chen tells us how he went beyond the call to change the lives of five siblings. >> reporter: this police officer always wanted a big family but he and his wife never thought they would suddenly jump from having zero children to five. >> you do or don't? >> i don't. >> okay. >> reporter: on january 14th, he answered a dispatch call for shots fired at a home. one parent is alleged to have killed the other leaving five children at the house with no one to care for them. after leaving the scene -- >> i did something that i've never done before, and i came back to this incident, i said, make me a promise. i want you to promise me that you'll learn to forgive. >> reporter: their experience is something he can relate to. his own father was killed by a