Ross was never tried for this and it was almost certainly a baseless acusation to destroy his reputation. Obviously these acusations still follow him today. This is how these people opperate. Potentially these acusations had some affect on Ross receiving his insanely long sentance for running a website.
Here is an article discussing this in further detail after the charges were dropped:
dropped:


Reason.com
Ross Ulbricht's Murder-for-Hire Charges Dropped by U.S. Attorney
While the Silk Road founder's reputation has already been sullied by the untried accusations, the feds give up on those charges after Supreme ...