You're listening to the drag.

Mark Condit sits in his car.

It's almost midnight.

He's parked at a hotel, the courtyard by Marriott.

It's right off Interstate 35,

one of the several hotels along a stretch of access road

in Round Rock, just north of Austin.

The parking lot wraps around the building.

Almost all of the cars are parked on the front and side parking lots, except for a few stragglers who park alone behind

the building, probably to avoid door dings and rear ends.

He's and his dad's Nissan Pathfinder facing a hedge that lines to the backside of a parking lot.

During the day, the sky above the road here is wrapped in cable lines, but it's dark and the only source of light comes from the street lamps overhead and inside the car.

We don't know what was going through Mark Condett's mind, whether he was scared or not.

He doesn't know that the FBI has detained his roommate Colin Thomas.

But what he does know is that investigators are on to him.

He must be aware that they know where he lives.

He's the one behind the serial bombings in Austin,

so the fact that emergency services arrived at his house

doesn't seem like a coincidence.

He turns on his phone.

It's been off for hours.

And then he begins to record his story. I'm Ashley Ms. Nause and you're listening to the final episode of this season of darkness

...