Enlarge / The Daniel Patrick Moynihan US District Court for the Southern District of New York Courthouse. (credit: Michael Nagle/Bloomberg via Getty Images)

Nearly 10 years ago, the sprawling dark-web drug market known as the Silk Road was torn offline in a law enforcement operation coordinated by the FBI, whose agents arrested the black market’s boss, Ross Ulbricht, in a San Francisco library. It would take two years for Ulbricht’s second-in-command—an elusive figure known as Variety Jones—to be tracked down and arrested in Thailand. Today, a decade after the Silk Road’s demise, Clark has been sentenced to join his former boss in federal prison.

In a Manhattan courtroom on Tuesday, Roger Thomas Clark—also known by his online handles including Variety Jones, Cimon, and Plural of Mongoose—was sentenced to 20 years behind bars for his role in building and running Silk Road. Clark, a 62-year-old Canadian national, will now likely spend much of the rest of his life incarcerated for helping to pioneer the anonymous, cryptocurrency-based model for online illegal sales of drugs and other contraband that still persists on the dark web today. The sentence is the maximum Clark faced in accordance with the plea agreement he made with prosecutors.

Clark “misguidedly turned his belief that drugs should be legal into material assistance for a criminal enterprise,” Judge Sidney Stein said in his sentencing statement. “These beliefs crossed over into patently illegal behavior.”