Charlie Shrem, CEO of the bitcoin exchange BitInstant and a founding member of the Bitcoin Foundation, is arrested at JFK Airport on charges of money laundering and operating an unlicensed money transmitting business linked to Silk Road transactions. Shrem was one of Bitcoin's most prominent early advocates and his arrest sent shockwaves through the community. He pleaded guilty and served two years in federal prison. The case underscored the regulatory risks facing early bitcoin entrepreneurs.
Wikipedia: Charlie Shrem