Is there any reference to this?
http://www.ibtimes.com/who-ali-shukri-amin-virginia-isis-teenager-behind-pro-islamic-state-twitter-sentenced-2073208
http://fusion.net/story/191633/a-virginia-teen-who-ran-a-pro-isis-twitter-account-is-going-to-prison-for-11-years/
Not sure what came out of this. I've read two different stories on different media, one says ISIS does not use cryptocurrencies at all, another says they actively use cryptocurrencies. Not sure if they ended up giving proof that he was fundraising in Bitcoin for terrorists. Maybe it was just his own address?