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When you hear the clip down the hill, what does that do to you?

Makes me sick. Little I hate those words. I hate those words. And it's crazy how three words can just really disrupt.

30 minutes. That's all it will take to disrupt this case and everything we know about it.

The information we're about to get it's not a lot. But it's the most police have ever released about what happened out there that day.

It will make this murder case unique. We're about to get a brief glimpse into Abby and Libby's final moments to imagine what they saw and what they felt. That's different.

That's different. That's what separates this one from all the others. What happened before and after that small look has hatched thousands of theories.

One thing everyone can agree on though is the fact that on this day, February 22nd, 2017, 30 minutes will set the tone for everything to come.

Police are also examining this snapchat photo. It was taken just before both girls disappeared.

I made the announcement that the girls have been found and it was not to a good end.

We are investigating this as a crime scene. We suspect foul play.

Law enforcement is saying that one of the girls actually took video on her iPhone. They say it was right before she was murdered.

It's amazing that we have a video. We have a still photograph. We have sound. We don't know this person is. It could be half the white males in Carroll County.

To the killer who may be in this room, we likely have interviewed you. We know that this is about power to you. And you want to know what we know the one day you will.

This is down the hill, the Delphi murders.

We are back here at CNN Center in the writers room. I'm Drew Aiden.

And I'm Barbara McDonald. We want to say thanks to you folks for joining us as we kind of walk through the storyline here of what happened in Delphi.

What we know right now is that two girls, Abigail Williams 13 and Liberty German 14, have been murdered.

We know they were walking on a bridge shortly before those murders. In the wake of that, some photos have emerged.

There's two Snapchat photos, Abby on the bridge and then one of the bridge itself.

And then there's two photos of a man grainy pictures of a man on the bridge. We don't know when that day. We don't really have any specifics. But they're pretty spooky.

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