11/21/2013 02:20 EST | Updated 11/22/2013 09:41 EST

Ross Ulbricht, Alleged Silk Road Operator, Paid For Six Killings, Says Prosecutor

NEW YORK -- 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.

Ulbricht was arrested Oct. 1 at the San Francisco public library. 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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