They seem like nuts. First, they're selling something on their website.

From the news article:

The Bigfoot Field Research Organization, a California-based group claiming there have been 61 Bigfoot sightings in Georgia, officially described Whitton and Dyer as "idiots" and "clowns," and warned their claims are a scam to advertise their business.

I think that's fairly showing. Especially since the Bigfoot Field Research Organization has its own fair share of quacks.

In one video, posted online by "RDYER678," Whitton and Dyer interview a "pathologist" who is shocked at the Bigfoot, but then, in a follow-up video, the pair admits the "doctor of pathology" is actually Whitton's brother. Standing in a kitchen, Whitton's brother says to the camera, "Live and let live. What happened to that? Guys just trying to have a little fun, you know?"

Why would they jeopardize their credibility like this when shit like this has plagued other bigfoot investigations in which 'evidence' was procured?

Dyer did not say how they came into possession of the carcass, and declined to let a news reporter look at it, but swore it was being well-preserved and would be revealed.

Dyer said he and Whitton plan to sell the Bigfoot body and make a lot of money.

"As of right now," he said, "we've been offered a million bucks for it, from a very credible source. But we'll make 10 times that. This will change history forever."

THIS, is why it's false. They're keeping the body a secret. They're not turning it over to any university, they're not subjecting it to any sort of tests. They're fucking hawking it to the highest bidder. This whole thing just screams scam.