Betsy Shepard

Sometimes they'll be covered with snow.

Sometimes they'll be covered with mud, crossing rivers.

I mean, it's crazy what kind of stuff that we were doing.

There was one that we did, and it was hand over foot trying to get up this mountain.

Wow.

And so part of the activity was figuring out how to get to the end of it.

Yeah, in one piece.

Hearing Megardly talk about ultramarathoners, it sounds like they have no off switch.

So maybe Ajay just overdid it.

Your brain...

does some wonky stuff when you're dehydrated.

And they thought maybe he got on a trail and he was doing the Forrest Gump, just kept running.

That's a theory, that Ajay was doing the Forrest Gump and just kept running and got himself into a tailspin of dehydration.

Responders take note and fan out across the search grid.

Ranger Jack Farley again.

So I go, okay, okay.

But it doesn't take long for the pros to realize they're in over their heads.

So Farley leads a few groups of deputies and bloodhounds down the local trails.

The dogs pick up a scent, possibly Ajay's, on a trail that's near a local resident.

That guy reported to searchers that he heard a single gunshot at sunset the day Ajay vanished.