Tonight, a Dateline exclusive. All I could think about was the kids. Those four families, I can't imagine.

Sorry. It's just weeks away, a trial and the terrifying murders of four college students in Idaho.

Brian, Brian, did you do it! Now, startling new information, video never seen before.

There's evidence to show that his car left in such a hurry.

He almost hit somebody.

Yep, that's right.

Ominous selfies from the suspect's phone, images of women and serial killers.

Googling the words forced, passed out, drug. These are all themes

of power, domination, and control. It was very known that Brian Coburger had a problem with women.

I was like he had my phone number. He had asked to hang out with me. New details from inside the house.

Something is happening to not help.

What will be revealed in court?

We came across a tip that would appear to be an alternate suspect.

Justice is coming.

Families deserve that.

It's time.

The evidence, the trial, the suspect, the heartbreak.

Tonight, you're inside this case like never before.

I'm Lester Holt, and this is Dateline.

Here's Keith Morrison with The Terrible Night on King Road.

And now spring has come to Moscow Idaho and fresh life with it.

Soon, another army of graduates will be released into the world.

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