I'm Lester Holt, tonight on the 30th season premiere of Date Line,

a triple murder and a couple with dark secrets.

He showed me his phone.

It's got a picture of my house with a cram scene tape around it.

It's just like it's not real.

When they went into the house, they found

a cow-fin-filled of spotty in the basement, shot repeatedly.

Firefighters were called for the discovery of a burn car off the roadway.

We found two bodies inside.

There's been three gruesome murders.

It's not a good feeling.

What are we dealing with? What are we facing here?

The sun tells you about this apparent conflict between the neighbors.

That's right.

He was an Arby Major. She is drop dead beautiful.

They had somewhat of a volatile marriage.

She would talk about that he was very angry.

I felt the pattern was of a woman who was using men to get what she wanted.

Everything started escalating.

He said, I need you to leave your house in the next 30 seconds.

My brother-in-law said, you need a gun.

There's a killer on the list.

...