Considering the recent revealations in this case (where two law enforcement officers including Force were also found involved in robbing BTC during their investigation of DPR), it is highly possible that these charges were made up. I don't think DPR would ever hire a hitman through a wire transfer.

And even if he had to, he would be smart enough to come up with some fake account. He was running Silk Road after all, so already had access to wide range of fake identity documents.