Wasn't that charge dropped though?

Yes but he did get scammed as that wasn't a real hitman

There wasn't any evidence that actually happened. It appears that it may have been fabricated by the same investigators that later robbed him of some millions of dollars worth of bitcoin. Then when it went to trial the murder-for-hire charges were completely dropped due to lack of evidence.

He was convicted of:

  1. Conspiracy to traffic narcotics
  2. Continuing Criminal Enterprise (CCE) (sometimes referred to as the “kingpin” charge)
  3. Computer Hacking Conspiracy
  4. Conspiracy to Traffic in Fraudulent Identity Documents
  5. Money Laundering Conspiracy

The hitman was a conman for a murder on a fictitious person. While he fully believed he was committing a real assassination, you can't convict people for killing imaginary people.