The FBI has shut down the online drug bazaar Silk Road -- and arrested the man who they say created it.
Federal agents arrested Ross William Ulbricht on Tuesday afternoon, charging him with narcotics trafficking, computer hacking and money laundering. A sealed complaint filed by the Federal Bureau of Investigation details the charges and extent of the case.
The FBI also seized the Silk Road website, replacing its homepage with a banner noting as much, according to agency spokeswoman Kelly Langmesser.
The site, which started in 2011, was operated on an anonymous network known as Tor, software that makes it difficult to trace online activity. The only money accepted on Silk Road was digital currency bitcoin, adding an additional layer of anonymity to buyers and sellers.
Silk Road was commonly used as a marketplace to trade illegal drugs. But the FBI says it was also used to trade firearms, hire assassins and employ hackers.
The FBI, along with the U.S. Drug Enforcement Agency, had worked on shuttering Silk Road and tracking down its creator for two and a half years. Ulbricht was arrested at the Glen Park branch of the San Francisco Public Library at 3:15 p.m. PT on Tuesday.
In its Sept. 27 complaint, the FBI claims Ulbricht was the infamous "Dread Pirate Roberts" who created Silk Road. A person under that pseudonym agreed to speak to Forbes in August about the site and the vision behind it: creating a digital world that exceeds the grasp of government taxes and laws.
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