(CNN) -- Two girls were killed, each shot multiple times, on a country road near Weleetka, Oklahoma, and investigators still have no suspects.
The bodies of Taylor Paschal-Placker, 13, and Skyla Whitaker, 11, were found Sunday by Taylor's grandfather. CNN's Nancy Grace spoke with Skyla's grandmother Claudia Farrow and with Jessica Brown, a spokeswoman with the Oklahoma State Bureau of Investigation.
NANCY GRACE: I know that you and your family have been in very close touch with the police. Did they believe this was a random shooting, somebody just saw two little schoolgirls and decided to shoot them?
CLAUDIA FARROW: I couldn't hardly believe it myself. I don`t know how they could have believed it, either, but that had to be what happened. There's just a lot of mad, crazy people out there.
GRACE: And whoever they are, they are walking free right now. Do you believe that the police are getting anywhere in the investigation?
FARROW: I believe they're trying hard to find these killers just for the sake of saving somebody else's child.
GRACE: What happened that day? When did you see your granddaughter Skyla?
FARROW: Actually, I didn't see her. I'd seen her body. Her body was covered. And I never got any closer than 50 feet to her. They wouldn't let me any closer.
So I knew they were there. I knew where they were laying. The girls were five feet apart from each other. So I knew that whoever killed them, it had to be more than one person. There's no way they could have had time to put one gun up and grab another gun and shoot the other girl without her running at least 25 feet away.
So I knew that it had to be two people that killed them. But they wouldn`t let me close enough to her.
GRACE: Ms. Farrow, when did you last speak to her?
FARROW: It was about a week ago, just random everyday talk, Where are you going? What you been doing? Just everyday talk.
GRACE: All I know about Skyla is what I've read in the newspapers, and looking at her photo. Can you tell me about her?
FARROW: Well, she was a typical tomboy. She lived out in the country. She loved animals, loved to fish. Every time she`d come over here in my yard, which they just lived about a hundred yards from me, all her animals would follow her over here.
She'd have five or six cats following her, her little dog and her goat. I'd get on to her daddy, I said, 'Now, don`t you let that goat eat my flowers,' because she'd always eat my flowers. I will miss that. I will miss her. Watch Skyla's grandma talk about her granddaughter »
GRACE: That is exactly the way that we were brought up, out in the middle of a rural setting where everybody knows their neighbor. I can remember we would ride our bikes so far away, they'd have to blow the car horn to get us to come home. It would be so far away.
And that was perfectly OK. There was not a thought that a hair on our head would be -- would be harmed.
GRACE: When did you learn of this -- this murder?
FARROW: Well, Sunday afternoon. My daughter was the second person to arrive on the scene. And the daddy of Taylor wouldn't let her near Skyla. And she called us at our home, and we flew over there to see about her because we knew something was drastically wrong. So it was Sunday afternoon, probably 5:20.
GRACE: Officer, what can you tell me? Was DNA found at the scene? That is very intriguing in light of the suggestion that there was no sex attack whatsoever. Why would there be DNA at the scene unless the girls had scratched the perp?
JESSICA BROWN: We're talking mostly blood evidence here. Of course, there was children's blood there. We're also hoping for some reason there may be the suspect's blood there, as well, that would help us find out this person [or persons].
But during the autopsy, they also try to find out if there's any skin underneath the girls' fingernails that may lead us to the attacker. We don`t know yet.
GRACE: They're testing for DNA?
GRACE: And what about fibers? What about their clothing?
BROWN: We are getting that. We're going over it with microscopes, looking at every piece of evidence that might be possible that could link anyone to these homicides. We're doing everything possible.