Lester Holt

Up in Tallahassee, homicide detectives started following the best lead they had, that possible getaway car a witness described.

It was light-colored, white or silver.

I want to say it was a Prius.

Detectives suspected that car may have been following Dan that morning, so they retraced his travels in search for clues.

So, Jason, he's dropped the kids off at the preschool roughly, what, five minutes to nine, something like that?

Close to that.

And then he's driving right down this road to go to the gym.

That's when Dan left this voicemail for Wendy.

Cops found security video of Dan as he arrived at the gym at 9.13 a.m.

You could see him checking in.

We did see him scan his key card in.

Then police checked security cameras outside the health club and hit a forensic home run.

What do you know?

There was a Prius.

And it was following Dan when he drove in.

At 10.34 a.m., Dan leaves the gym.

When Dan drives out of the parking lot, the Prius is 20 seconds behind him.

He leaves the parking lot here and is headed back towards his house.

At that point, he is being hunted.

They're not going to let him out of their sights?