Tonight on the season premiere of Daydly.

My name is Colin Strickland. I'm a bicycle racer based in Austin, Texas.

Colin and Caitlin dated for about three years.

They seem very happy together.

I'm Raya Wilson. I also go by Moe.

She was this rising star crushing these racers.

Colin drops her off and intruder shoots and kills her.

This pretty distinct Jeep Cherokee was in the area.

This is somebody who was watching.

Absolutely. This very expensive bicycle was missing.

Colin is being looked at.

All of a sudden, this suspected killer is gone.

It's a really good place for people to hide out.

The land of the unwanted and the wanted.

You can get rid of your phone, rid of all identifying material.

You can't escape. It's a small world.

Tonight's kind of a movie itself. Talk about a story.

So why was a champion cyclist murdered?

And where did her suspected killer go?

I'm Lester Holt and this is Dateline.

Here's Keith Morrison with The Last Ride.

Just look at her. This bright young star.

...