SAN FRANCISCO (CBS/AP) – A San Francisco man has been ordered held without bail in New York after a prosecutor accused him of running a massive online drug empire and paying $730,000 to try to kill six people.

Assistant U.S. Attorney Serrin Turner made the comments to a magistrate judge during a bail hearing Thursday for Ross William Ulbricht. Turner says Ulbricht operated the Silk Road website where every type of illegal drug was sold.

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Ulbricht was arrested by undercover FBI agents in San Francisco’s Glen Park branch library on October 2nd. Federal prosecutors are seeking to have him transferred to New York to face the charges.

Authorities have said Ulbricht operated the website under various aliases, including “Dread Pirate Roberts”.

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He is awaiting trial on charges that carry a mandatory minimum of 10 years in prison and a maximum of life.

His mother, Lyn Ulbricht, said outside court that her son “is not a murderer.”

The prosecutor says he does not believe any of the killings have occurred.

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