Now streaming on Paramount Plus, criminal minds evolution.

All my years as a profiler I studied killers, but I never studied what a pandemic would do to them.

They started communicating to become better predators.

The deeper you dig.

These aren't just connected cases. This is a serial killing network.

The darker it gets.

There isn't enough time.

It's not over.

We're just getting started.

Criminal minds evolution. Stream new episodes now. Exclusively on Paramount Plus.

We are floating along Lake Wiley, South Carolina, which is a roughly 20-mile long lake.

As we've been cruising along here, it is looked like an episode of lifestyles of the rich and famous.

A lot of well.

It certainly is. There are a million dollar homes.

If you look at this one here, this is the Clayton estate.

Steven and Lana moved into it in 2015.

And it's actually modeled after President George Washington's mountain vernin estate.

Steven Clayton was a very well-liked person.

He had lots of friends. Very social-ball.

Lana worked as a nurse in several different veterans affairs hospitals.

Steven Clayton was found dead at the bottom of a staircase.

At the outset, this appeared to be a natural death.

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