Ross William Ulbricht, also known as "Dread Pirate Roberts," was arrested yesterday in San Francisco after the website was shuttered, the Justice Department said in a statement.
Prosecutors said they seized approximately USD 3.6 million worth of Bitcoins in the largest ever seizure of the virtual currency.
"The Silk Road website has served as a sprawling black market bazaar where illegal drugs and other illicit goods and services have been regularly bought and sold by the site's users," FBI special agent Christopher Tarbell said in a criminal complaint filed in a federal court.
Prosecutors also charged that in March of this year, Ulbricht tried to hire someone to kill a Silk Road user who threatened to expose the identities of others using the website.