Authorities say Charlie Shrem was arrested yesterday at New York's Kennedy Airport while Robert Faiella was arrested today at his Florida home.
Prosecutors say in a news release that Faiella sold Bitcoins to users seeking to buy illegal drugs on the site. They say Shrem bought drugs on Silk Road and helped Faiella exchange more than USD 1 million in cash for the tough-to-track digital currency Bitcoins so they could make illegal purchases.
Authorities have said Silk Road's San Francisco operator generated more than USD 1 billion in illicit business from January 2011 through September on the website, which used Bitcoin before it was shut down.