Joe's supplier was no secret, Shandong Kexing Bioproducts. He made that clear on his website he used to sell EPO and the Department of Justice has
confirmed it. Maybe he helped the Feds put pressure on the Chinese company but I kind of doubt it. The US government already had a major amount of leverage against Chinese pharma in the run-up to the Olympics and I know they were already taking advantage of it before they found out about Joe's dealing.
I feel for Joe to a certain extent but at the same time he's not being made an example because he was doping. He aggressively marketed EPO, which is a potentially lethal drug, we all know how dangerous it is. No dealer has ever used the internet to market EPO directly to athletes the way Joe did. His goal was to provide the best customer service and grow his business. And he did this while he was ostensibly helping USADA. He even provided extensive info in the Eposino forum about beating the tests. He didn't do the same for the health risks.
Joe's actions were incredibly reckless, I don't think I can overstate that. And I don't think any reasonable person can deny that the government has very good reason for levying charges against him, which he pleaded guilty to, that carry serious jail time.