http://www.coindesk.com/bitcoins-first-felon-charlie-shrem-begins-2-year-sentence/
At the age of 22, Shrem was the CEO of bitcoin exchange BitInstant. While working at this company, he violated anti-money laundering duties by dealing with Robert Faiella, who supplied $1m in digital currency to people buying drugs on the now-defunct online marketplace Silk Road.

Faiella, who went by the alias of 'BTCKing', was sentenced in January to four years imprisonment.

Both Shrem and Faiella entered plea bargains, agreeing to forfeit $950,000 each to the US government as a condition of their deals.