It was, in fact, pay of the allegations of the crimes he was charged with, and it explicitly was a sentencing factor. He wasn't charged with, say, attempted murder or conspiracy to commit murder for the alleged murder-for-hire scheme, though.
It was used as an aggravation factor (if that's the right word) at sentencing, that's true. But he wasn't charged with it.
Does that really sound logical to you?
> Federal prosecutors alleged that Ulbricht had paid $730,000 in murder-for-hire deals targeting at least five people,[29] allegedly because they threatened to reveal Ulbricht's Silk Road enterprise.[37][38] Prosecutors believe no contracted killing actually occurred.[29] Ulbricht was not charged in his trial in New York federal court with any murder-for-hire,[29][39] but evidence was introduced at trial supporting the allegations.[29][38] The evidence that Ulbricht had commissioned murders was considered by the judge in sentencing Ulbricht to life, and was a factor in the Second Circuit's decision to affirm the life sentence.
https://en.wikipedia.org/wiki/Ross_Ulbricht#Silk_Road,_arres...
Ross Ulbricht got double life imprisonment + 40 years for a non violent crime.