[Johnny B.]

Full payment into escrow account.
Escrow funds return to customer if test results are not satisfactory.

Sounds good! Does he offer similar promises to his investors?

He wouldn't be the first con artist who fleeced investors was more lucrative than fleecing customers. Both Tilley and Steorn proudly boasted that they wouldn't take any money from customers until they delivered working devices. Yet each one managed to bilk millions from their investors.

There's more than one way to con someone out of his money.

[Kevmo]

Then all you need to do is find his investors who are supposedly being fleeced.