the murder part? If you are familiar with the story, it was 5 made-up characters he was allegedly going to have killed. Many argue, rightfully so, that this was entrapment. Also, the entire story is the word of a corrupt agent that was found to have embezzled money.

The other half of the argument is he received an unfair sentence. Double life in prison plus 40 years for pioneering a marketplace based on anonymity. He didn't supply the drugs that caused deaths, he just created a space in which the possibility of their exchange could happen.