David Ryan Burchard, 40, and Emil Vladimirov Babadjov, 33, have been sentenced to about six years each in federal prison. They were convicted of using AlphaBay and other darknet marketplaces to sell drugs. The AlphaBay marketplaces can only be accessed by using the Tor Tor browser. Police seized control of AlphaBay on July 4, 2017, which processed more than $1 billion in narcotics sales. Both men admitted to selling drugs via AlphaBay, which operated until July 2017, when the marketplaces went dark.”]
Source: https://www.govinfosecurity.com/bitcoin-amassing-alphabay-drug-barons-get-us-prison-time-a-10597